Finding the Fourth Proportional to 72,882.02, 109,323.15 and 20,291.48

Step by Step Solution

1. Step 1: Write the proportion equation
   72,882.02 : 109,323.15 = 20,291.48 : x
2. Step 2: Convert to fraction form
   72,882.02/109,323.15 = 20,291.48/x
3. Step 3: Cross multiply
   72,882.02x = 109,323.15 × 20,291.48
4. Step 4: Simplify right side
   72,882.02x = 2,218,328,511.76
5. Step 5: Solve for x
   x = 2,218,328,511.76/72,882.02
6. Step 6: Final answer
   x = 30,437.25