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Finding the Fourth Proportional to 86,621.64, 129,937.08 and 27,461.94

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Solution

The fourth proportional to 86,621.64, 129,937.08 and 27,461.94 is: 41,194.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,621.64 : 129,937.08 = 27,461.94 : x
  2. Step 2: Convert to fraction form
    86,621.64/129,937.08 = 27,461.94/x
  3. Step 3: Cross multiply
    86,621.64x = 129,937.08 × 27,461.94
  4. Step 4: Simplify right side
    86,621.64x = 3,568,324,294.74
  5. Step 5: Solve for x
    x = 3,568,324,294.74/86,621.64
  6. Step 6: Final answer
    x = 41,194.37

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