Finding the Fourth Proportional to 469,398.42, 647,773.88 and 254,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   469,398.42 : 647,773.88 = 254,538.50 : x
2. Step 2: Convert to fraction form
   469,398.42/647,773.88 = 254,538.50/x
3. Step 3: Cross multiply
   469,398.42x = 647,773.88 × 254,538.50
4. Step 4: Simplify right side
   469,398.42x = 164,883,387,242.82
5. Step 5: Solve for x
   x = 164,883,387,242.82/469,398.42
6. Step 6: Final answer
   x = 351,265.32