Finding the Fourth Proportional to 71,142.78, 106,775.52 and 39,584.37

Step by Step Solution

1. Step 1: Write the proportion equation
   71,142.78 : 106,775.52 = 39,584.37 : x
2. Step 2: Convert to fraction form
   71,142.78/106,775.52 = 39,584.37/x
3. Step 3: Cross multiply
   71,142.78x = 106,775.52 × 39,584.37
4. Step 4: Simplify right side
   71,142.78x = 4,226,641,690.62
5. Step 5: Solve for x
   x = 4,226,641,690.62/71,142.78
6. Step 6: Final answer
   x = 59,410.69