Finding the Fourth Proportional to 251,786,978.16, 377,456,406.12 and 98,398,155.12

Step by Step Solution

1. Step 1: Write the proportion equation
   251,786,978.16 : 377,456,406.12 = 98,398,155.12 : x
2. Step 2: Convert to fraction form
   251,786,978.16/377,456,406.12 = 98,398,155.12/x
3. Step 3: Cross multiply
   251,786,978.16x = 377,456,406.12 × 98,398,155.12
4. Step 4: Simplify right side
   251,786,978.16x = 37,141,014,000,433,480
5. Step 5: Solve for x
   x = 37,141,014,000,433,480/251,786,978.16
6. Step 6: Final answer
   x = 147,509,669.77