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Finding the Fourth Proportional to 85,593.88, 128,381.08 and 26,429.88

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Solution

The fourth proportional to 85,593.88, 128,381.08 and 26,429.88 is: 39,641.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,593.88 : 128,381.08 = 26,429.88 : x
  2. Step 2: Convert to fraction form
    85,593.88/128,381.08 = 26,429.88/x
  3. Step 3: Cross multiply
    85,593.88x = 128,381.08 × 26,429.88
  4. Step 4: Simplify right side
    85,593.88x = 3,393,096,538.67
  5. Step 5: Solve for x
    x = 3,393,096,538.67/85,593.88
  6. Step 6: Final answer
    x = 39,641.81

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