Finding the Fourth Proportional to 71,856,809, 99,162,396.42 and 39,261,761

Step by Step Solution

1. Step 1: Write the proportion equation
   71,856,809 : 99,162,396.42 = 39,261,761 : x
2. Step 2: Convert to fraction form
   71,856,809/99,162,396.42 = 39,261,761/x
3. Step 3: Cross multiply
   71,856,809x = 99,162,396.42 × 39,261,761
4. Step 4: Simplify right side
   71,856,809x = 3,893,290,308,429,295.50
5. Step 5: Solve for x
   x = 3,893,290,308,429,295.50/71,856,809
6. Step 6: Final answer
   x = 54,181,230.18