Finding the Fourth Proportional to 59,566.78, 82,115.33 and 42,540.99

Step by Step Solution

1. Step 1: Write the proportion equation
   59,566.78 : 82,115.33 = 42,540.99 : x
2. Step 2: Convert to fraction form
   59,566.78/82,115.33 = 42,540.99/x
3. Step 3: Cross multiply
   59,566.78x = 82,115.33 × 42,540.99
4. Step 4: Simplify right side
   59,566.78x = 3,493,267,432.38
5. Step 5: Solve for x
   x = 3,493,267,432.38/59,566.78
6. Step 6: Final answer
   x = 58,644.56