Finding the Fourth Proportional to 72,079.03, 108,118.28 and 19,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,079.03 : 108,118.28 = 19,488.50 : x
2. Step 2: Convert to fraction form
   72,079.03/108,118.28 = 19,488.50/x
3. Step 3: Cross multiply
   72,079.03x = 108,118.28 × 19,488.50
4. Step 4: Simplify right side
   72,079.03x = 2,107,063,099.78
5. Step 5: Solve for x
   x = 2,107,063,099.78/72,079.03
6. Step 6: Final answer
   x = 29,232.68