Finding the Fourth Proportional to 8,749.50, 12,074.31 and 5,609.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,749.50 : 12,074.31 = 5,609.94 : x
2. Step 2: Convert to fraction form
   8,749.50/12,074.31 = 5,609.94/x
3. Step 3: Cross multiply
   8,749.50x = 12,074.31 × 5,609.94
4. Step 4: Simplify right side
   8,749.50x = 67,736,154.64
5. Step 5: Solve for x
   x = 67,736,154.64/8,749.50
6. Step 6: Final answer
   x = 7,741.72