Finding the Fourth Proportional to 10,557.92, 15,841.49 and 5,015.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,557.92 : 15,841.49 = 5,015.18 : x
2. Step 2: Convert to fraction form
   10,557.92/15,841.49 = 5,015.18/x
3. Step 3: Cross multiply
   10,557.92x = 15,841.49 × 5,015.18
4. Step 4: Simplify right side
   10,557.92x = 79,447,923.82
5. Step 5: Solve for x
   x = 79,447,923.82/10,557.92
6. Step 6: Final answer
   x = 7,524.96