Finding the Fourth Proportional to 111,764.24, 154,108.68 and 81,496.16

Step by Step Solution

1. Step 1: Write the proportion equation
   111,764.24 : 154,108.68 = 81,496.16 : x
2. Step 2: Convert to fraction form
   111,764.24/154,108.68 = 81,496.16/x
3. Step 3: Cross multiply
   111,764.24x = 154,108.68 × 81,496.16
4. Step 4: Simplify right side
   111,764.24x = 12,559,265,642.67
5. Step 5: Solve for x
   x = 12,559,265,642.67/111,764.24
6. Step 6: Final answer
   x = 112,372.85