Finding the Fourth Proportional to 361,111.02, 541,665.18 and 108,390.42

Step by Step Solution

1. Step 1: Write the proportion equation
   361,111.02 : 541,665.18 = 108,390.42 : x
2. Step 2: Convert to fraction form
   361,111.02/541,665.18 = 108,390.42/x
3. Step 3: Cross multiply
   361,111.02x = 541,665.18 × 108,390.42
4. Step 4: Simplify right side
   361,111.02x = 58,711,316,359.58
5. Step 5: Solve for x
   x = 58,711,316,359.58/361,111.02
6. Step 6: Final answer
   x = 162,585.22