Finding the Fourth Proportional to 42,978.78, 59,311.17 and 24,115.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,978.78 : 59,311.17 = 24,115.50 : x
2. Step 2: Convert to fraction form
   42,978.78/59,311.17 = 24,115.50/x
3. Step 3: Cross multiply
   42,978.78x = 59,311.17 × 24,115.50
4. Step 4: Simplify right side
   42,978.78x = 1,430,318,520.14
5. Step 5: Solve for x
   x = 1,430,318,520.14/42,978.78
6. Step 6: Final answer
   x = 33,279.64