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Finding the Fourth Proportional to 56,661.27, 78,192.63 and 31,510.77

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Solution

The fourth proportional to 56,661.27, 78,192.63 and 31,510.77 is: 43,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,661.27 : 78,192.63 = 31,510.77 : x
  2. Step 2: Convert to fraction form
    56,661.27/78,192.63 = 31,510.77/x
  3. Step 3: Cross multiply
    56,661.27x = 78,192.63 × 31,510.77
  4. Step 4: Simplify right side
    56,661.27x = 2,463,909,431.11
  5. Step 5: Solve for x
    x = 2,463,909,431.11/56,661.27
  6. Step 6: Final answer
    x = 43,484.90

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