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Finding the Fourth Proportional to 423,255.12, 634,874.46 and 103,409.10

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Solution

The fourth proportional to 423,255.12, 634,874.46 and 103,409.10 is: 155,111.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,255.12 : 634,874.46 = 103,409.10 : x
  2. Step 2: Convert to fraction form
    423,255.12/634,874.46 = 103,409.10/x
  3. Step 3: Cross multiply
    423,255.12x = 634,874.46 × 103,409.10
  4. Step 4: Simplify right side
    423,255.12x = 65,651,796,521.59
  5. Step 5: Solve for x
    x = 65,651,796,521.59/423,255.12
  6. Step 6: Final answer
    x = 155,111.64

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