Finding the Fourth Proportional to 503,141.76, 754,362.72 and 187,513.92

Step by Step Solution

1. Step 1: Write the proportion equation
   503,141.76 : 754,362.72 = 187,513.92 : x
2. Step 2: Convert to fraction form
   503,141.76/754,362.72 = 187,513.92/x
3. Step 3: Cross multiply
   503,141.76x = 754,362.72 × 187,513.92
4. Step 4: Simplify right side
   503,141.76x = 141,453,510,729.06
5. Step 5: Solve for x
   x = 141,453,510,729.06/503,141.76
6. Step 6: Final answer
   x = 281,140.47