Finding the Fourth Proportional to 8,661.25, 13,012.67 and 5,547.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,661.25 : 13,012.67 = 5,547.29 : x
2. Step 2: Convert to fraction form
   8,661.25/13,012.67 = 5,547.29/x
3. Step 3: Cross multiply
   8,661.25x = 13,012.67 × 5,547.29
4. Step 4: Simplify right side
   8,661.25x = 72,185,100.56
5. Step 5: Solve for x
   x = 72,185,100.56/8,661.25
6. Step 6: Final answer
   x = 8,334.26