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Finding the Fourth Proportional to 75,642.84, 113,464.08 and 20,238.84

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Solution

The fourth proportional to 75,642.84, 113,464.08 and 20,238.84 is: 30,358.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,642.84 : 113,464.08 = 20,238.84 : x
  2. Step 2: Convert to fraction form
    75,642.84/113,464.08 = 20,238.84/x
  3. Step 3: Cross multiply
    75,642.84x = 113,464.08 × 20,238.84
  4. Step 4: Simplify right side
    75,642.84x = 2,296,381,360.87
  5. Step 5: Solve for x
    x = 2,296,381,360.87/75,642.84
  6. Step 6: Final answer
    x = 30,358.21

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