Finding the Fourth Proportional to 8,966.60, 12,373.31 and 5,609.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,966.60 : 12,373.31 = 5,609.25 : x
2. Step 2: Convert to fraction form
   8,966.60/12,373.31 = 5,609.25/x
3. Step 3: Cross multiply
   8,966.60x = 12,373.31 × 5,609.25
4. Step 4: Simplify right side
   8,966.60x = 69,404,971.59
5. Step 5: Solve for x
   x = 69,404,971.59/8,966.60
6. Step 6: Final answer
   x = 7,740.39