Finding the Fourth Proportional to 353,807.15, 488,253.89 and 192,662.15

Step by Step Solution

1. Step 1: Write the proportion equation
   353,807.15 : 488,253.89 = 192,662.15 : x
2. Step 2: Convert to fraction form
   353,807.15/488,253.89 = 192,662.15/x
3. Step 3: Cross multiply
   353,807.15x = 488,253.89 × 192,662.15
4. Step 4: Simplify right side
   353,807.15x = 94,068,042,233.65
5. Step 5: Solve for x
   x = 94,068,042,233.65/353,807.15
6. Step 6: Final answer
   x = 265,873.78