Finding the Fourth Proportional to 9,706.34, 13,394.88 and 5,513.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,706.34 : 13,394.88 = 5,513.78 : x
2. Step 2: Convert to fraction form
   9,706.34/13,394.88 = 5,513.78/x
3. Step 3: Cross multiply
   9,706.34x = 13,394.88 × 5,513.78
4. Step 4: Simplify right side
   9,706.34x = 73,856,421.45
5. Step 5: Solve for x
   x = 73,856,421.45/9,706.34
6. Step 6: Final answer
   x = 7,609.09