Finding the Fourth Proportional to 508,100.98, 701,128.83 and 293,310.25

Step by Step Solution

1. Step 1: Write the proportion equation
   508,100.98 : 701,128.83 = 293,310.25 : x
2. Step 2: Convert to fraction form
   508,100.98/701,128.83 = 293,310.25/x
3. Step 3: Cross multiply
   508,100.98x = 701,128.83 × 293,310.25
4. Step 4: Simplify right side
   508,100.98x = 205,648,268,903.86
5. Step 5: Solve for x
   x = 205,648,268,903.86/508,100.98
6. Step 6: Final answer
   x = 404,738.97