Finding the Fourth Proportional to 353,087,365.55, 487,328,025.71 and 233,799,559.02

Step by Step Solution

1. Step 1: Write the proportion equation
   353,087,365.55 : 487,328,025.71 = 233,799,559.02 : x
2. Step 2: Convert to fraction form
   353,087,365.55/487,328,025.71 = 233,799,559.02/x
3. Step 3: Cross multiply
   353,087,365.55x = 487,328,025.71 × 233,799,559.02
4. Step 4: Simplify right side
   353,087,365.55x = 113,937,077,509,669,728
5. Step 5: Solve for x
   x = 113,937,077,509,669,728/353,087,365.55
6. Step 6: Final answer
   x = 322,688,061.45