Finding the Fourth Proportional to 11,358.89, 17,045.63 and 5,512.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,358.89 : 17,045.63 = 5,512.31 : x
2. Step 2: Convert to fraction form
   11,358.89/17,045.63 = 5,512.31/x
3. Step 3: Cross multiply
   11,358.89x = 17,045.63 × 5,512.31
4. Step 4: Simplify right side
   11,358.89x = 93,960,790.45
5. Step 5: Solve for x
   x = 93,960,790.45/11,358.89
6. Step 6: Final answer
   x = 8,272.00