Finding the Fourth Proportional to 8,488.37, 11,714.42 and 5,131.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,488.37 : 11,714.42 = 5,131.17 : x
2. Step 2: Convert to fraction form
   8,488.37/11,714.42 = 5,131.17/x
3. Step 3: Cross multiply
   8,488.37x = 11,714.42 × 5,131.17
4. Step 4: Simplify right side
   8,488.37x = 60,108,680.47
5. Step 5: Solve for x
   x = 60,108,680.47/8,488.37
6. Step 6: Final answer
   x = 7,081.30