Finding the Fourth Proportional to 111,815.46, 167,800.95 and 72,274.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,815.46 : 167,800.95 = 72,274.50 : x
2. Step 2: Convert to fraction form
   111,815.46/167,800.95 = 72,274.50/x
3. Step 3: Cross multiply
   111,815.46x = 167,800.95 × 72,274.50
4. Step 4: Simplify right side
   111,815.46x = 12,127,729,760.78
5. Step 5: Solve for x
   x = 12,127,729,760.78/111,815.46
6. Step 6: Final answer
   x = 108,462.01