Finding the Fourth Proportional to 431,700.52, 647,546.72 and 242,160.52

Step by Step Solution

1. Step 1: Write the proportion equation
   431,700.52 : 647,546.72 = 242,160.52 : x
2. Step 2: Convert to fraction form
   431,700.52/647,546.72 = 242,160.52/x
3. Step 3: Cross multiply
   431,700.52x = 647,546.72 × 242,160.52
4. Step 4: Simplify right side
   431,700.52x = 156,810,250,439.49
5. Step 5: Solve for x
   x = 156,810,250,439.49/431,700.52
6. Step 6: Final answer
   x = 363,238.50