Finding the Fourth Proportional to 108,049.47, 148,929.80 and 72,226.41

Step by Step Solution

1. Step 1: Write the proportion equation
   108,049.47 : 148,929.80 = 72,226.41 : x
2. Step 2: Convert to fraction form
   108,049.47/148,929.80 = 72,226.41/x
3. Step 3: Cross multiply
   108,049.47x = 148,929.80 × 72,226.41
4. Step 4: Simplify right side
   108,049.47x = 10,756,664,796.02
5. Step 5: Solve for x
   x = 10,756,664,796.02/108,049.47
6. Step 6: Final answer
   x = 99,553.15