Finding the Fourth Proportional to 398,359,406.22, 597,540,230.34 and 152,791,315.02

Step by Step Solution

1. Step 1: Write the proportion equation
   398,359,406.22 : 597,540,230.34 = 152,791,315.02 : x
2. Step 2: Convert to fraction form
   398,359,406.22/597,540,230.34 = 152,791,315.02/x
3. Step 3: Cross multiply
   398,359,406.22x = 597,540,230.34 × 152,791,315.02
4. Step 4: Simplify right side
   398,359,406.22x = 91,298,957,571,002,320
5. Step 5: Solve for x
   x = 91,298,957,571,002,320/398,359,406.22
6. Step 6: Final answer
   x = 229,187,402.49