Finding the Fourth Proportional to 150,419,010.72, 207,501,836.22 and 98,238,590.40

Step by Step Solution

1. Step 1: Write the proportion equation
   150,419,010.72 : 207,501,836.22 = 98,238,590.40 : x
2. Step 2: Convert to fraction form
   150,419,010.72/207,501,836.22 = 98,238,590.40/x
3. Step 3: Cross multiply
   150,419,010.72x = 207,501,836.22 × 98,238,590.40
4. Step 4: Simplify right side
   150,419,010.72x = 20,384,687,895,664,464
5. Step 5: Solve for x
   x = 20,384,687,895,664,464/150,419,010.72
6. Step 6: Final answer
   x = 135,519,358.88