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Finding the Fourth Proportional to 123,547.02, 170,513.22 and 78,229.23

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Solution

The fourth proportional to 123,547.02, 170,513.22 and 78,229.23 is: 107,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,547.02 : 170,513.22 = 78,229.23 : x
  2. Step 2: Convert to fraction form
    123,547.02/170,513.22 = 78,229.23/x
  3. Step 3: Cross multiply
    123,547.02x = 170,513.22 × 78,229.23
  4. Step 4: Simplify right side
    123,547.02x = 13,339,117,905.42
  5. Step 5: Solve for x
    x = 13,339,117,905.42/123,547.02
  6. Step 6: Final answer
    x = 107,967.95

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