Finding the Fourth Proportional to 111,817.96, 167,804.70 and 72,277

Step by Step Solution

1. Step 1: Write the proportion equation
   111,817.96 : 167,804.70 = 72,277 : x
2. Step 2: Convert to fraction form
   111,817.96/167,804.70 = 72,277/x
3. Step 3: Cross multiply
   111,817.96x = 167,804.70 × 72,277
4. Step 4: Simplify right side
   111,817.96x = 12,128,420,301.90
5. Step 5: Solve for x
   x = 12,128,420,301.90/111,817.96
6. Step 6: Final answer
   x = 108,465.76