Finding the Fourth Proportional to 88,218,128.40, 123,632,925.60 and 88,218,128.40

Step by Step Solution

1. Step 1: Write the proportion equation
   88,218,128.40 : 123,632,925.60 = 88,218,128.40 : x
2. Step 2: Convert to fraction form
   88,218,128.40/123,632,925.60 = 88,218,128.40/x
3. Step 3: Cross multiply
   88,218,128.40x = 123,632,925.60 × 88,218,128.40
4. Step 4: Simplify right side
   88,218,128.40x = 10,906,665,305,048,448
5. Step 5: Solve for x
   x = 10,906,665,305,048,448/88,218,128.40
6. Step 6: Final answer
   x = 123,632,925.60