Finding the Fourth Proportional to 374,931.78, 517,405.89 and 205,165.92

Step by Step Solution

1. Step 1: Write the proportion equation
   374,931.78 : 517,405.89 = 205,165.92 : x
2. Step 2: Convert to fraction form
   374,931.78/517,405.89 = 205,165.92/x
3. Step 3: Cross multiply
   374,931.78x = 517,405.89 × 205,165.92
4. Step 4: Simplify right side
   374,931.78x = 106,154,055,435.27
5. Step 5: Solve for x
   x = 106,154,055,435.27/374,931.78
6. Step 6: Final answer
   x = 283,128.99