Finding the Fourth Proportional to 313,157.10, 469,640.61 and 88,499.82

Step by Step Solution

1. Step 1: Write the proportion equation
   313,157.10 : 469,640.61 = 88,499.82 : x
2. Step 2: Convert to fraction form
   313,157.10/469,640.61 = 88,499.82/x
3. Step 3: Cross multiply
   313,157.10x = 469,640.61 × 88,499.82
4. Step 4: Simplify right side
   313,157.10x = 41,563,109,449.69
5. Step 5: Solve for x
   x = 41,563,109,449.69/313,157.10
6. Step 6: Final answer
   x = 132,722.87