Finding the Fourth Proportional to 10,288.47, 14,198.10 and 5,572.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,288.47 : 14,198.10 = 5,572.76 : x
2. Step 2: Convert to fraction form
   10,288.47/14,198.10 = 5,572.76/x
3. Step 3: Cross multiply
   10,288.47x = 14,198.10 × 5,572.76
4. Step 4: Simplify right side
   10,288.47x = 79,122,603.76
5. Step 5: Solve for x
   x = 79,122,603.76/10,288.47
6. Step 6: Final answer
   x = 7,690.41