Finding the Fourth Proportional to 139,745,081.52, 209,656,509.87 and 60,968,481.87

Step by Step Solution

1. Step 1: Write the proportion equation
   139,745,081.52 : 209,656,509.87 = 60,968,481.87 : x
2. Step 2: Convert to fraction form
   139,745,081.52/209,656,509.87 = 60,968,481.87/x
3. Step 3: Cross multiply
   139,745,081.52x = 209,656,509.87 × 60,968,481.87
4. Step 4: Simplify right side
   139,745,081.52x = 12,782,439,120,936,570
5. Step 5: Solve for x
   x = 12,782,439,120,936,570/139,745,081.52
6. Step 6: Final answer
   x = 91,469,688.82