Finding the Fourth Proportional to 10,560.39, 15,819.63 and 7,039.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,560.39 : 15,819.63 = 7,039.94 : x
2. Step 2: Convert to fraction form
   10,560.39/15,819.63 = 7,039.94/x
3. Step 3: Cross multiply
   10,560.39x = 15,819.63 × 7,039.94
4. Step 4: Simplify right side
   10,560.39x = 111,369,166.92
5. Step 5: Solve for x
   x = 111,369,166.92/10,560.39
6. Step 6: Final answer
   x = 10,545.93