Finding the Fourth Proportional to 502,682.56, 754,144.08 and 147,688.72

Step by Step Solution

1. Step 1: Write the proportion equation
   502,682.56 : 754,144.08 = 147,688.72 : x
2. Step 2: Convert to fraction form
   502,682.56/754,144.08 = 147,688.72/x
3. Step 3: Cross multiply
   502,682.56x = 754,144.08 × 147,688.72
4. Step 4: Simplify right side
   502,682.56x = 111,378,573,870.78
5. Step 5: Solve for x
   x = 111,378,573,870.78/502,682.56
6. Step 6: Final answer
   x = 221,568.41