Finding the Fourth Proportional to 10,288.48, 14,198.08 and 5,572.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,288.48 : 14,198.08 = 5,572.80 : x
2. Step 2: Convert to fraction form
   10,288.48/14,198.08 = 5,572.80/x
3. Step 3: Cross multiply
   10,288.48x = 14,198.08 × 5,572.80
4. Step 4: Simplify right side
   10,288.48x = 79,123,060.22
5. Step 5: Solve for x
   x = 79,123,060.22/10,288.48
6. Step 6: Final answer
   x = 7,690.45