Finding the Fourth Proportional to 10,008.69, 13,811.03 and 5,531.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,008.69 : 13,811.03 = 5,531.71 : x
2. Step 2: Convert to fraction form
   10,008.69/13,811.03 = 5,531.71/x
3. Step 3: Cross multiply
   10,008.69x = 13,811.03 × 5,531.71
4. Step 4: Simplify right side
   10,008.69x = 76,398,585.10
5. Step 5: Solve for x
   x = 76,398,585.10/10,008.69
6. Step 6: Final answer
   x = 7,633.23