Finding the Fourth Proportional to 9,012.84, 13,500.06 and 5,115.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012.84 : 13,500.06 = 5,115.24 : x
2. Step 2: Convert to fraction form
   9,012.84/13,500.06 = 5,115.24/x
3. Step 3: Cross multiply
   9,012.84x = 13,500.06 × 5,115.24
4. Step 4: Simplify right side
   9,012.84x = 69,056,046.91
5. Step 5: Solve for x
   x = 69,056,046.91/9,012.84
6. Step 6: Final answer
   x = 7,661.96