Finding the Fourth Proportional to 9,992.26, 13,789.39 and 5,516.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,992.26 : 13,789.39 = 5,516.15 : x
2. Step 2: Convert to fraction form
   9,992.26/13,789.39 = 5,516.15/x
3. Step 3: Cross multiply
   9,992.26x = 13,789.39 × 5,516.15
4. Step 4: Simplify right side
   9,992.26x = 76,064,348.82
5. Step 5: Solve for x
   x = 76,064,348.82/9,992.26
6. Step 6: Final answer
   x = 7,612.33