Finding the Fourth Proportional to 9,145.66, 12,624.51 and 5,613.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,145.66 : 12,624.51 = 5,613.67 : x
2. Step 2: Convert to fraction form
   9,145.66/12,624.51 = 5,613.67/x
3. Step 3: Cross multiply
   9,145.66x = 12,624.51 × 5,613.67
4. Step 4: Simplify right side
   9,145.66x = 70,869,833.05
5. Step 5: Solve for x
   x = 70,869,833.05/9,145.66
6. Step 6: Final answer
   x = 7,749.01