Finding the Fourth Proportional to 12,819.71, 19,236.05 and 5,028.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,819.71 : 19,236.05 = 5,028.59 : x
2. Step 2: Convert to fraction form
   12,819.71/19,236.05 = 5,028.59/x
3. Step 3: Cross multiply
   12,819.71x = 19,236.05 × 5,028.59
4. Step 4: Simplify right side
   12,819.71x = 96,730,208.67
5. Step 5: Solve for x
   x = 96,730,208.67/12,819.71
6. Step 6: Final answer
   x = 7,545.43