Finding the Fourth Proportional to 72,544.45, 108,227.60 and 68,620.81

Step by Step Solution

1. Step 1: Write the proportion equation
   72,544.45 : 108,227.60 = 68,620.81 : x
2. Step 2: Convert to fraction form
   72,544.45/108,227.60 = 68,620.81/x
3. Step 3: Cross multiply
   72,544.45x = 108,227.60 × 68,620.81
4. Step 4: Simplify right side
   72,544.45x = 7,426,665,630.83
5. Step 5: Solve for x
   x = 7,426,665,630.83/72,544.45
6. Step 6: Final answer
   x = 102,374.00