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Finding the Fourth Proportional to 186,405.12, 257,230.26 and 105,822

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Solution

The fourth proportional to 186,405.12, 257,230.26 and 105,822 is: 146,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,405.12 : 257,230.26 = 105,822 : x
  2. Step 2: Convert to fraction form
    186,405.12/257,230.26 = 105,822/x
  3. Step 3: Cross multiply
    186,405.12x = 257,230.26 × 105,822
  4. Step 4: Simplify right side
    186,405.12x = 27,220,620,573.72
  5. Step 5: Solve for x
    x = 27,220,620,573.72/186,405.12
  6. Step 6: Final answer
    x = 146,029.36

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