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Finding the Fourth Proportional to 74,859.39, 112,289.90 and 19,455.39

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Solution

The fourth proportional to 74,859.39, 112,289.90 and 19,455.39 is: 29,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,859.39 : 112,289.90 = 19,455.39 : x
  2. Step 2: Convert to fraction form
    74,859.39/112,289.90 = 19,455.39/x
  3. Step 3: Cross multiply
    74,859.39x = 112,289.90 × 19,455.39
  4. Step 4: Simplify right side
    74,859.39x = 2,184,643,700.28
  5. Step 5: Solve for x
    x = 2,184,643,700.28/74,859.39
  6. Step 6: Final answer
    x = 29,183.30

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