Finding the Fourth Proportional to 10,320.04, 15,464.94 and 5,115.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,320.04 : 15,464.94 = 5,115.52 : x
2. Step 2: Convert to fraction form
   10,320.04/15,464.94 = 5,115.52/x
3. Step 3: Cross multiply
   10,320.04x = 15,464.94 × 5,115.52
4. Step 4: Simplify right side
   10,320.04x = 79,111,209.87
5. Step 5: Solve for x
   x = 79,111,209.87/10,320.04
6. Step 6: Final answer
   x = 7,665.79