Finding the Fourth Proportional to 501,048.28, 691,490.15 and 274,737.52

Step by Step Solution

1. Step 1: Write the proportion equation
   501,048.28 : 691,490.15 = 274,737.52 : x
2. Step 2: Convert to fraction form
   501,048.28/691,490.15 = 274,737.52/x
3. Step 3: Cross multiply
   501,048.28x = 691,490.15 × 274,737.52
4. Step 4: Simplify right side
   501,048.28x = 189,978,288,915.43
5. Step 5: Solve for x
   x = 189,978,288,915.43/501,048.28
6. Step 6: Final answer
   x = 379,161.64