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Finding the Fourth Proportional to 58,378.74, 87,580.92 and 18,939.84

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Solution

The fourth proportional to 58,378.74, 87,580.92 and 18,939.84 is: 28,413.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,378.74 : 87,580.92 = 18,939.84 : x
  2. Step 2: Convert to fraction form
    58,378.74/87,580.92 = 18,939.84/x
  3. Step 3: Cross multiply
    58,378.74x = 87,580.92 × 18,939.84
  4. Step 4: Simplify right side
    58,378.74x = 1,658,768,611.85
  5. Step 5: Solve for x
    x = 1,658,768,611.85/58,378.74
  6. Step 6: Final answer
    x = 28,413.92

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