Finding the Fourth Proportional to 72,254.79, 108,380.15 and 19,664.73

Step by Step Solution

1. Step 1: Write the proportion equation
   72,254.79 : 108,380.15 = 19,664.73 : x
2. Step 2: Convert to fraction form
   72,254.79/108,380.15 = 19,664.73/x
3. Step 3: Cross multiply
   72,254.79x = 108,380.15 × 19,664.73
4. Step 4: Simplify right side
   72,254.79x = 2,131,265,746.89
5. Step 5: Solve for x
   x = 2,131,265,746.89/72,254.79
6. Step 6: Final answer
   x = 29,496.53