Finding the Fourth Proportional to 10,196.48, 14,070 and 5,719.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,196.48 : 14,070 = 5,719.30 : x
2. Step 2: Convert to fraction form
   10,196.48/14,070 = 5,719.30/x
3. Step 3: Cross multiply
   10,196.48x = 14,070 × 5,719.30
4. Step 4: Simplify right side
   10,196.48x = 80,470,551
5. Step 5: Solve for x
   x = 80,470,551/10,196.48
6. Step 6: Final answer
   x = 7,891.99