Finding the Fourth Proportional to 313,152.88, 469,728.05 and 113,426.52

Step by Step Solution

1. Step 1: Write the proportion equation
   313,152.88 : 469,728.05 = 113,426.52 : x
2. Step 2: Convert to fraction form
   313,152.88/469,728.05 = 113,426.52/x
3. Step 3: Cross multiply
   313,152.88x = 469,728.05 × 113,426.52
4. Step 4: Simplify right side
   313,152.88x = 53,279,618,057.89
5. Step 5: Solve for x
   x = 53,279,618,057.89/313,152.88
6. Step 6: Final answer
   x = 170,139.32