Finding the Fourth Proportional to 16,863.96, 25,293.72 and 5,176.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,863.96 : 25,293.72 = 5,176.20 : x
2. Step 2: Convert to fraction form
   16,863.96/25,293.72 = 5,176.20/x
3. Step 3: Cross multiply
   16,863.96x = 25,293.72 × 5,176.20
4. Step 4: Simplify right side
   16,863.96x = 130,925,353.46
5. Step 5: Solve for x
   x = 130,925,353.46/16,863.96
6. Step 6: Final answer
   x = 7,763.62