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Finding the Fourth Proportional to 86,357.88, 129,541.44 and 27,198.16

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Solution

The fourth proportional to 86,357.88, 129,541.44 and 27,198.16 is: 40,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,357.88 : 129,541.44 = 27,198.16 : x
  2. Step 2: Convert to fraction form
    86,357.88/129,541.44 = 27,198.16/x
  3. Step 3: Cross multiply
    86,357.88x = 129,541.44 × 27,198.16
  4. Step 4: Simplify right side
    86,357.88x = 3,523,288,811.75
  5. Step 5: Solve for x
    x = 3,523,288,811.75/86,357.88
  6. Step 6: Final answer
    x = 40,798.70

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