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Finding the Fourth Proportional to 266,542.59, 399,754.92 and 76,961.81

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Solution

The fourth proportional to 266,542.59, 399,754.92 and 76,961.81 is: 115,425.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,542.59 : 399,754.92 = 76,961.81 : x
  2. Step 2: Convert to fraction form
    266,542.59/399,754.92 = 76,961.81/x
  3. Step 3: Cross multiply
    266,542.59x = 399,754.92 × 76,961.81
  4. Step 4: Simplify right side
    266,542.59x = 30,765,862,199.61
  5. Step 5: Solve for x
    x = 30,765,862,199.61/266,542.59
  6. Step 6: Final answer
    x = 115,425.69

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