Finding the Fourth Proportional to 72,080.03, 108,119.78 and 19,489.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,080.03 : 108,119.78 = 19,489.50 : x
2. Step 2: Convert to fraction form
   72,080.03/108,119.78 = 19,489.50/x
3. Step 3: Cross multiply
   72,080.03x = 108,119.78 × 19,489.50
4. Step 4: Simplify right side
   72,080.03x = 2,107,200,354.86
5. Step 5: Solve for x
   x = 2,107,200,354.86/72,080.03
6. Step 6: Final answer
   x = 29,234.18