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Finding the Fourth Proportional to 57,788.92, 86,694.14 and 18,335.40

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Solution

The fourth proportional to 57,788.92, 86,694.14 and 18,335.40 is: 27,506.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,788.92 : 86,694.14 = 18,335.40 : x
  2. Step 2: Convert to fraction form
    57,788.92/86,694.14 = 18,335.40/x
  3. Step 3: Cross multiply
    57,788.92x = 86,694.14 × 18,335.40
  4. Step 4: Simplify right side
    57,788.92x = 1,589,571,734.56
  5. Step 5: Solve for x
    x = 1,589,571,734.56/57,788.92
  6. Step 6: Final answer
    x = 27,506.51

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