Finding the Fourth Proportional to 271,138.73, 374,085.88 and 156,401.96

Step by Step Solution

1. Step 1: Write the proportion equation
   271,138.73 : 374,085.88 = 156,401.96 : x
2. Step 2: Convert to fraction form
   271,138.73/374,085.88 = 156,401.96/x
3. Step 3: Cross multiply
   271,138.73x = 374,085.88 × 156,401.96
4. Step 4: Simplify right side
   271,138.73x = 58,507,762,578.89
5. Step 5: Solve for x
   x = 58,507,762,578.89/271,138.73
6. Step 6: Final answer
   x = 215,785.34