Finding the Fourth Proportional to 72,268.48, 108,391.76 and 19,682.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,268.48 : 108,391.76 = 19,682.10 : x
2. Step 2: Convert to fraction form
   72,268.48/108,391.76 = 19,682.10/x
3. Step 3: Cross multiply
   72,268.48x = 108,391.76 × 19,682.10
4. Step 4: Simplify right side
   72,268.48x = 2,133,377,459.50
5. Step 5: Solve for x
   x = 2,133,377,459.50/72,268.48
6. Step 6: Final answer
   x = 29,520.17