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Finding the Fourth Proportional to 86,611.28, 129,939.93 and 27,446.85

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Solution

The fourth proportional to 86,611.28, 129,939.93 and 27,446.85 is: 41,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,611.28 : 129,939.93 = 27,446.85 : x
  2. Step 2: Convert to fraction form
    86,611.28/129,939.93 = 27,446.85/x
  3. Step 3: Cross multiply
    86,611.28x = 129,939.93 × 27,446.85
  4. Step 4: Simplify right side
    86,611.28x = 3,566,441,767.72
  5. Step 5: Solve for x
    x = 3,566,441,767.72/86,611.28
  6. Step 6: Final answer
    x = 41,177.57

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