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Finding the Fourth Proportional to 58,015.80, 87,023.70 and 57,238.20

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Solution

The fourth proportional to 58,015.80, 87,023.70 and 57,238.20 is: 85,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,015.80 : 87,023.70 = 57,238.20 : x
  2. Step 2: Convert to fraction form
    58,015.80/87,023.70 = 57,238.20/x
  3. Step 3: Cross multiply
    58,015.80x = 87,023.70 × 57,238.20
  4. Step 4: Simplify right side
    58,015.80x = 4,981,079,945.34
  5. Step 5: Solve for x
    x = 4,981,079,945.34/58,015.80
  6. Step 6: Final answer
    x = 85,857.30

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