Finding the Fourth Proportional to 148,139,724.72, 204,503,709.24 and 98,662,436.40

Step by Step Solution

1. Step 1: Write the proportion equation
   148,139,724.72 : 204,503,709.24 = 98,662,436.40 : x
2. Step 2: Convert to fraction form
   148,139,724.72/204,503,709.24 = 98,662,436.40/x
3. Step 3: Cross multiply
   148,139,724.72x = 204,503,709.24 × 98,662,436.40
4. Step 4: Simplify right side
   148,139,724.72x = 20,176,834,206,455,596
5. Step 5: Solve for x
   x = 20,176,834,206,455,596/148,139,724.72
6. Step 6: Final answer
   x = 136,201,375.05