Finding the Fourth Proportional to 111,833.24, 154,338.77 and 64,091.03

Step by Step Solution

1. Step 1: Write the proportion equation
   111,833.24 : 154,338.77 = 64,091.03 : x
2. Step 2: Convert to fraction form
   111,833.24/154,338.77 = 64,091.03/x
3. Step 3: Cross multiply
   111,833.24x = 154,338.77 × 64,091.03
4. Step 4: Simplify right side
   111,833.24x = 9,891,730,417.78
5. Step 5: Solve for x
   x = 9,891,730,417.78/111,833.24
6. Step 6: Final answer
   x = 88,450.72