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Finding the Fourth Proportional to 76,237.76, 105,208.11 and 42,703.76

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Solution

The fourth proportional to 76,237.76, 105,208.11 and 42,703.76 is: 58,931.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,237.76 : 105,208.11 = 42,703.76 : x
  2. Step 2: Convert to fraction form
    76,237.76/105,208.11 = 42,703.76/x
  3. Step 3: Cross multiply
    76,237.76x = 105,208.11 × 42,703.76
  4. Step 4: Simplify right side
    76,237.76x = 4,492,781,353.45
  5. Step 5: Solve for x
    x = 4,492,781,353.45/76,237.76
  6. Step 6: Final answer
    x = 58,931.19

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