Finding the Fourth Proportional to 10,007.67, 13,811.30 and 5,531.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,007.67 : 13,811.30 = 5,531.32 : x
2. Step 2: Convert to fraction form
   10,007.67/13,811.30 = 5,531.32/x
3. Step 3: Cross multiply
   10,007.67x = 13,811.30 × 5,531.32
4. Step 4: Simplify right side
   10,007.67x = 76,394,730.27
5. Step 5: Solve for x
   x = 76,394,730.27/10,007.67
6. Step 6: Final answer
   x = 7,633.62