Finding the Fourth Proportional to 453,061.72, 625,241.24 and 249,128.18

Step by Step Solution

1. Step 1: Write the proportion equation
   453,061.72 : 625,241.24 = 249,128.18 : x
2. Step 2: Convert to fraction form
   453,061.72/625,241.24 = 249,128.18/x
3. Step 3: Cross multiply
   453,061.72x = 625,241.24 × 249,128.18
4. Step 4: Simplify right side
   453,061.72x = 155,765,212,182.14
5. Step 5: Solve for x
   x = 155,765,212,182.14/453,061.72
6. Step 6: Final answer
   x = 343,805.72