Finding the Fourth Proportional to 8,343.24, 11,511.61 and 5,112.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,343.24 : 11,511.61 = 5,112.15 : x
2. Step 2: Convert to fraction form
   8,343.24/11,511.61 = 5,112.15/x
3. Step 3: Cross multiply
   8,343.24x = 11,511.61 × 5,112.15
4. Step 4: Simplify right side
   8,343.24x = 58,849,077.06
5. Step 5: Solve for x
   x = 58,849,077.06/8,343.24
6. Step 6: Final answer
   x = 7,053.50