Finding the Fourth Proportional to 139,968,335.70, 209,952,503.55 and 88,572,086.10

Step by Step Solution

1. Step 1: Write the proportion equation
   139,968,335.70 : 209,952,503.55 = 88,572,086.10 : x
2. Step 2: Convert to fraction form
   139,968,335.70/209,952,503.55 = 88,572,086.10/x
3. Step 3: Cross multiply
   139,968,335.70x = 209,952,503.55 × 88,572,086.10
4. Step 4: Simplify right side
   139,968,335.70x = 18,595,931,221,341,156
5. Step 5: Solve for x
   x = 18,595,931,221,341,156/139,968,335.70
6. Step 6: Final answer
   x = 132,858,129.15