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Finding the Fourth Proportional to 57,742.93, 86,617.45 and 18,303.11

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Solution

The fourth proportional to 57,742.93, 86,617.45 and 18,303.11 is: 27,455.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,742.93 : 86,617.45 = 18,303.11 : x
  2. Step 2: Convert to fraction form
    57,742.93/86,617.45 = 18,303.11/x
  3. Step 3: Cross multiply
    57,742.93x = 86,617.45 × 18,303.11
  4. Step 4: Simplify right side
    57,742.93x = 1,585,369,117.10
  5. Step 5: Solve for x
    x = 1,585,369,117.10/57,742.93
  6. Step 6: Final answer
    x = 27,455.64

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