Finding the Fourth Proportional to 503,298.72, 755,078.76 and 187,758

Step by Step Solution

1. Step 1: Write the proportion equation
   503,298.72 : 755,078.76 = 187,758 : x
2. Step 2: Convert to fraction form
   503,298.72/755,078.76 = 187,758/x
3. Step 3: Cross multiply
   503,298.72x = 755,078.76 × 187,758
4. Step 4: Simplify right side
   503,298.72x = 141,772,077,820.08
5. Step 5: Solve for x
   x = 141,772,077,820.08/503,298.72
6. Step 6: Final answer
   x = 281,685.75