Finding the Fourth Proportional to 111,851.68, 154,361.97 and 64,108.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111,851.68 : 154,361.97 = 64,108.10 : x
2. Step 2: Convert to fraction form
   111,851.68/154,361.97 = 64,108.10/x
3. Step 3: Cross multiply
   111,851.68x = 154,361.97 × 64,108.10
4. Step 4: Simplify right side
   111,851.68x = 9,895,851,837.15
5. Step 5: Solve for x
   x = 9,895,851,837.15/111,851.68
6. Step 6: Final answer
   x = 88,472.98