Finding the Fourth Proportional to 318,196.89, 439,113.32 and 174,966.15

Step by Step Solution

1. Step 1: Write the proportion equation
   318,196.89 : 439,113.32 = 174,966.15 : x
2. Step 2: Convert to fraction form
   318,196.89/439,113.32 = 174,966.15/x
3. Step 3: Cross multiply
   318,196.89x = 439,113.32 × 174,966.15
4. Step 4: Simplify right side
   318,196.89x = 76,829,966,139.29
5. Step 5: Solve for x
   x = 76,829,966,139.29/318,196.89
6. Step 6: Final answer
   x = 241,454.17