Finding the Fourth Proportional to 72,243.68, 108,906.98 and 67,426.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,243.68 : 108,906.98 = 67,426.88 : x
2. Step 2: Convert to fraction form
   72,243.68/108,906.98 = 67,426.88/x
3. Step 3: Cross multiply
   72,243.68x = 108,906.98 × 67,426.88
4. Step 4: Simplify right side
   72,243.68x = 7,343,256,989.95
5. Step 5: Solve for x
   x = 7,343,256,989.95/72,243.68
6. Step 6: Final answer
   x = 101,645.67