Finding the Fourth Proportional to 233,359,912.80, 322,036,018.56 and 128,937,240.72

Step by Step Solution

1. Step 1: Write the proportion equation
   233,359,912.80 : 322,036,018.56 = 128,937,240.72 : x
2. Step 2: Convert to fraction form
   233,359,912.80/322,036,018.56 = 128,937,240.72/x
3. Step 3: Cross multiply
   233,359,912.80x = 322,036,018.56 × 128,937,240.72
4. Step 4: Simplify right side
   233,359,912.80x = 41,522,435,645,581,104
5. Step 5: Solve for x
   x = 41,522,435,645,581,104/233,359,912.80
6. Step 6: Final answer
   x = 177,933,026.92