Finding the Fourth Proportional to 503,360.72, 755,171.76 and 187,820

Step by Step Solution

1. Step 1: Write the proportion equation
   503,360.72 : 755,171.76 = 187,820 : x
2. Step 2: Convert to fraction form
   503,360.72/755,171.76 = 187,820/x
3. Step 3: Cross multiply
   503,360.72x = 755,171.76 × 187,820
4. Step 4: Simplify right side
   503,360.72x = 141,836,359,963.20
5. Step 5: Solve for x
   x = 141,836,359,963.20/503,360.72
6. Step 6: Final answer
   x = 281,778.76