Finding the Fourth Proportional to 573,738.27, 860,724.05 and 199,790.43

Step by Step Solution

1. Step 1: Write the proportion equation
   573,738.27 : 860,724.05 = 199,790.43 : x
2. Step 2: Convert to fraction form
   573,738.27/860,724.05 = 199,790.43/x
3. Step 3: Cross multiply
   573,738.27x = 860,724.05 × 199,790.43
4. Step 4: Simplify right side
   573,738.27x = 171,964,427,061.89
5. Step 5: Solve for x
   x = 171,964,427,061.89/573,738.27
6. Step 6: Final answer
   x = 299,726.26