Finding the Fourth Proportional to 8,769.52, 12,078.48 and 7,435.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,769.52 : 12,078.48 = 7,435.12 : x
2. Step 2: Convert to fraction form
   8,769.52/12,078.48 = 7,435.12/x
3. Step 3: Cross multiply
   8,769.52x = 12,078.48 × 7,435.12
4. Step 4: Simplify right side
   8,769.52x = 89,804,948.22
5. Step 5: Solve for x
   x = 89,804,948.22/8,769.52
6. Step 6: Final answer
   x = 10,240.58