Finding the Fourth Proportional to 111,909.24, 154,443.78 and 64,167.03

Step by Step Solution

1. Step 1: Write the proportion equation
   111,909.24 : 154,443.78 = 64,167.03 : x
2. Step 2: Convert to fraction form
   111,909.24/154,443.78 = 64,167.03/x
3. Step 3: Cross multiply
   111,909.24x = 154,443.78 × 64,167.03
4. Step 4: Simplify right side
   111,909.24x = 9,910,198,664.57
5. Step 5: Solve for x
   x = 9,910,198,664.57/111,909.24
6. Step 6: Final answer
   x = 88,555.68