Finding the Fourth Proportional to 88,573,691.55, 132,860,537.33 and 82,116,683.40

Step by Step Solution

1. Step 1: Write the proportion equation
   88,573,691.55 : 132,860,537.33 = 82,116,683.40 : x
2. Step 2: Convert to fraction form
   88,573,691.55/132,860,537.33 = 82,116,683.40/x
3. Step 3: Cross multiply
   88,573,691.55x = 132,860,537.33 × 82,116,683.40
4. Step 4: Simplify right side
   88,573,691.55x = 10,910,066,679,870,908
5. Step 5: Solve for x
   x = 10,910,066,679,870,908/88,573,691.55
6. Step 6: Final answer
   x = 123,175,025.10