Finding the Fourth Proportional to 8,894.31, 12,275.73 and 5,309.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,894.31 : 12,275.73 = 5,309.52 : x
2. Step 2: Convert to fraction form
   8,894.31/12,275.73 = 5,309.52/x
3. Step 3: Cross multiply
   8,894.31x = 12,275.73 × 5,309.52
4. Step 4: Simplify right side
   8,894.31x = 65,178,233.95
5. Step 5: Solve for x
   x = 65,178,233.95/8,894.31
6. Step 6: Final answer
   x = 7,328.08