Finding the Fourth Proportional to 10,545.32, 15,846.72 and 5,618.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,545.32 : 15,846.72 = 5,618.48 : x
2. Step 2: Convert to fraction form
   10,545.32/15,846.72 = 5,618.48/x
3. Step 3: Cross multiply
   10,545.32x = 15,846.72 × 5,618.48
4. Step 4: Simplify right side
   10,545.32x = 89,034,479.39
5. Step 5: Solve for x
   x = 89,034,479.39/10,545.32
6. Step 6: Final answer
   x = 8,443.03