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Finding the Fourth Proportional to 285,028.36, 427,529.82 and 74,661.64

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Solution

The fourth proportional to 285,028.36, 427,529.82 and 74,661.64 is: 111,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,028.36 : 427,529.82 = 74,661.64 : x
  2. Step 2: Convert to fraction form
    285,028.36/427,529.82 = 74,661.64/x
  3. Step 3: Cross multiply
    285,028.36x = 427,529.82 × 74,661.64
  4. Step 4: Simplify right side
    285,028.36x = 31,920,077,510.10
  5. Step 5: Solve for x
    x = 31,920,077,510.10/285,028.36
  6. Step 6: Final answer
    x = 111,989.13

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