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Finding the Fourth Proportional to 57,712.60, 86,423.10 and 46,048.60

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Solution

The fourth proportional to 57,712.60, 86,423.10 and 46,048.60 is: 68,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,712.60 : 86,423.10 = 46,048.60 : x
  2. Step 2: Convert to fraction form
    57,712.60/86,423.10 = 46,048.60/x
  3. Step 3: Cross multiply
    57,712.60x = 86,423.10 × 46,048.60
  4. Step 4: Simplify right side
    57,712.60x = 3,979,662,762.66
  5. Step 5: Solve for x
    x = 3,979,662,762.66/57,712.60
  6. Step 6: Final answer
    x = 68,956.57

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