Finding the Fourth Proportional to 271,401.54, 374,526.90 and 156,676.31

Step by Step Solution

1. Step 1: Write the proportion equation
   271,401.54 : 374,526.90 = 156,676.31 : x
2. Step 2: Convert to fraction form
   271,401.54/374,526.90 = 156,676.31/x
3. Step 3: Cross multiply
   271,401.54x = 374,526.90 × 156,676.31
4. Step 4: Simplify right side
   271,401.54x = 58,679,491,649.89
5. Step 5: Solve for x
   x = 58,679,491,649.89/271,401.54
6. Step 6: Final answer
   x = 216,209.13