Finding the Fourth Proportional to 111,809.46, 167,791.96 and 72,268.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,809.46 : 167,791.96 = 72,268.50 : x
2. Step 2: Convert to fraction form
   111,809.46/167,791.96 = 72,268.50/x
3. Step 3: Cross multiply
   111,809.46x = 167,791.96 × 72,268.50
4. Step 4: Simplify right side
   111,809.46x = 12,126,073,261.26
5. Step 5: Solve for x
   x = 12,126,073,261.26/111,809.46
6. Step 6: Final answer
   x = 108,453.02