Finding the Fourth Proportional to 10,288.20, 14,197.72 and 5,572.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,288.20 : 14,197.72 = 5,572.46 : x
2. Step 2: Convert to fraction form
   10,288.20/14,197.72 = 5,572.46/x
3. Step 3: Cross multiply
   10,288.20x = 14,197.72 × 5,572.46
4. Step 4: Simplify right side
   10,288.20x = 79,116,226.79
5. Step 5: Solve for x
   x = 79,116,226.79/10,288.20
6. Step 6: Final answer
   x = 7,690.00