Finding the Fourth Proportional to 154,150.29, 231,256.42 and 54,381.17

Step by Step Solution

1. Step 1: Write the proportion equation
   154,150.29 : 231,256.42 = 54,381.17 : x
2. Step 2: Convert to fraction form
   154,150.29/231,256.42 = 54,381.17/x
3. Step 3: Cross multiply
   154,150.29x = 231,256.42 × 54,381.17
4. Step 4: Simplify right side
   154,150.29x = 12,575,995,131.80
5. Step 5: Solve for x
   x = 12,575,995,131.80/154,150.29
6. Step 6: Final answer
   x = 81,582.69