Finding the Fourth Proportional to 359,521,042.02, 496,139,144.27 and 202,921,322.55

Step by Step Solution

1. Step 1: Write the proportion equation
   359,521,042.02 : 496,139,144.27 = 202,921,322.55 : x
2. Step 2: Convert to fraction form
   359,521,042.02/496,139,144.27 = 202,921,322.55/x
3. Step 3: Cross multiply
   359,521,042.02x = 496,139,144.27 × 202,921,322.55
4. Step 4: Simplify right side
   359,521,042.02x = 100,677,211,322,358,928
5. Step 5: Solve for x
   x = 100,677,211,322,358,928/359,521,042.02
6. Step 6: Final answer
   x = 280,031,485.11