Finding the Fourth Proportional to 9,709.34, 13,398.84 and 5,517.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,709.34 : 13,398.84 = 5,517.59 : x
2. Step 2: Convert to fraction form
   9,709.34/13,398.84 = 5,517.59/x
3. Step 3: Cross multiply
   9,709.34x = 13,398.84 × 5,517.59
4. Step 4: Simplify right side
   9,709.34x = 73,929,238.60
5. Step 5: Solve for x
   x = 73,929,238.60/9,709.34
6. Step 6: Final answer
   x = 7,614.24