Finding the Fourth Proportional to 9,756.56, 13,466.04 and 6,613.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,756.56 : 13,466.04 = 6,613.76 : x
2. Step 2: Convert to fraction form
   9,756.56/13,466.04 = 6,613.76/x
3. Step 3: Cross multiply
   9,756.56x = 13,466.04 × 6,613.76
4. Step 4: Simplify right side
   9,756.56x = 89,061,156.71
5. Step 5: Solve for x
   x = 89,061,156.71/9,756.56
6. Step 6: Final answer
   x = 9,128.34