Finding the Fourth Proportional to 111,714.78, 154,157.24 and 65,767.13

Step by Step Solution

1. Step 1: Write the proportion equation
   111,714.78 : 154,157.24 = 65,767.13 : x
2. Step 2: Convert to fraction form
   111,714.78/154,157.24 = 65,767.13/x
3. Step 3: Cross multiply
   111,714.78x = 154,157.24 × 65,767.13
4. Step 4: Simplify right side
   111,714.78x = 10,138,479,243.52
5. Step 5: Solve for x
   x = 10,138,479,243.52/111,714.78
6. Step 6: Final answer
   x = 90,753.25