Finding the Fourth Proportional to 139,509,389.94, 209,072,766.12 and 88,299,997.62

Step by Step Solution

1. Step 1: Write the proportion equation
   139,509,389.94 : 209,072,766.12 = 88,299,997.62 : x
2. Step 2: Convert to fraction form
   139,509,389.94/209,072,766.12 = 88,299,997.62/x
3. Step 3: Cross multiply
   139,509,389.94x = 209,072,766.12 × 88,299,997.62
4. Step 4: Simplify right side
   139,509,389.94x = 18,461,124,750,802,820
5. Step 5: Solve for x
   x = 18,461,124,750,802,820/139,509,389.94
6. Step 6: Final answer
   x = 132,328,904.59