Finding the Fourth Proportional to 8,839.31, 12,185.64 and 6,320.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,839.31 : 12,185.64 = 6,320.52 : x
2. Step 2: Convert to fraction form
   8,839.31/12,185.64 = 6,320.52/x
3. Step 3: Cross multiply
   8,839.31x = 12,185.64 × 6,320.52
4. Step 4: Simplify right side
   8,839.31x = 77,019,581.33
5. Step 5: Solve for x
   x = 77,019,581.33/8,839.31
6. Step 6: Final answer
   x = 8,713.31