Finding the Fourth Proportional to 10,287.87, 14,197.24 and 5,572.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,287.87 : 14,197.24 = 5,572.15 : x
2. Step 2: Convert to fraction form
   10,287.87/14,197.24 = 5,572.15/x
3. Step 3: Cross multiply
   10,287.87x = 14,197.24 × 5,572.15
4. Step 4: Simplify right side
   10,287.87x = 79,109,122.34
5. Step 5: Solve for x
   x = 79,109,122.34/10,287.87
6. Step 6: Final answer
   x = 7,689.56