Finding the Fourth Proportional to 413,055.18, 619,057.89 and 225,847.98

Step by Step Solution

1. Step 1: Write the proportion equation
   413,055.18 : 619,057.89 = 225,847.98 : x
2. Step 2: Convert to fraction form
   413,055.18/619,057.89 = 225,847.98/x
3. Step 3: Cross multiply
   413,055.18x = 619,057.89 × 225,847.98
4. Step 4: Simplify right side
   413,055.18x = 139,812,973,959.56
5. Step 5: Solve for x
   x = 139,812,973,959.56/413,055.18
6. Step 6: Final answer
   x = 338,484.98