Finding the Fourth Proportional to 8,963.06, 12,363.28 and 5,780.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,963.06 : 12,363.28 = 5,780.52 : x
2. Step 2: Convert to fraction form
   8,963.06/12,363.28 = 5,780.52/x
3. Step 3: Cross multiply
   8,963.06x = 12,363.28 × 5,780.52
4. Step 4: Simplify right side
   8,963.06x = 71,466,187.31
5. Step 5: Solve for x
   x = 71,466,187.31/8,963.06
6. Step 6: Final answer
   x = 7,973.41