Finding the Fourth Proportional to 9,789.66, 13,501.86 and 8,969.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789.66 : 13,501.86 = 8,969.52 : x
2. Step 2: Convert to fraction form
   9,789.66/13,501.86 = 8,969.52/x
3. Step 3: Cross multiply
   9,789.66x = 13,501.86 × 8,969.52
4. Step 4: Simplify right side
   9,789.66x = 121,105,203.31
5. Step 5: Solve for x
   x = 121,105,203.31/9,789.66
6. Step 6: Final answer
   x = 12,370.73