Finding the Fourth Proportional to 83,664,442.10, 125,496,663.15 and 83,664,442.10

Step by Step Solution

1. Step 1: Write the proportion equation
   83,664,442.10 : 125,496,663.15 = 83,664,442.10 : x
2. Step 2: Convert to fraction form
   83,664,442.10/125,496,663.15 = 83,664,442.10/x
3. Step 3: Cross multiply
   83,664,442.10x = 125,496,663.15 × 83,664,442.10
4. Step 4: Simplify right side
   83,664,442.10x = 10,499,608,307,856,378
5. Step 5: Solve for x
   x = 10,499,608,307,856,378/83,664,442.10
6. Step 6: Final answer
   x = 125,496,663.15