Finding the Fourth Proportional to 72,561.27, 108,839.07 and 19,969.32

Step by Step Solution

1. Step 1: Write the proportion equation
   72,561.27 : 108,839.07 = 19,969.32 : x
2. Step 2: Convert to fraction form
   72,561.27/108,839.07 = 19,969.32/x
3. Step 3: Cross multiply
   72,561.27x = 108,839.07 × 19,969.32
4. Step 4: Simplify right side
   72,561.27x = 2,173,442,217.33
5. Step 5: Solve for x
   x = 2,173,442,217.33/72,561.27
6. Step 6: Final answer
   x = 29,953.20