Finding the Fourth Proportional to 9,346.72, 12,897.54 and 5,517.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,346.72 : 12,897.54 = 5,517.76 : x
2. Step 2: Convert to fraction form
   9,346.72/12,897.54 = 5,517.76/x
3. Step 3: Cross multiply
   9,346.72x = 12,897.54 × 5,517.76
4. Step 4: Simplify right side
   9,346.72x = 71,165,530.31
5. Step 5: Solve for x
   x = 71,165,530.31/9,346.72
6. Step 6: Final answer
   x = 7,613.96