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Finding the Fourth Proportional to 57,788.64, 86,685.84 and 18,341.76

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Solution

The fourth proportional to 57,788.64, 86,685.84 and 18,341.76 is: 27,513.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,788.64 : 86,685.84 = 18,341.76 : x
  2. Step 2: Convert to fraction form
    57,788.64/86,685.84 = 18,341.76/x
  3. Step 3: Cross multiply
    57,788.64x = 86,685.84 × 18,341.76
  4. Step 4: Simplify right side
    57,788.64x = 1,589,970,872.68
  5. Step 5: Solve for x
    x = 1,589,970,872.68/57,788.64
  6. Step 6: Final answer
    x = 27,513.55

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