Finding the Fourth Proportional to 9,709.61, 13,398.83 and 5,939.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,709.61 : 13,398.83 = 5,939.10 : x
2. Step 2: Convert to fraction form
   9,709.61/13,398.83 = 5,939.10/x
3. Step 3: Cross multiply
   9,709.61x = 13,398.83 × 5,939.10
4. Step 4: Simplify right side
   9,709.61x = 79,576,961.56
5. Step 5: Solve for x
   x = 79,576,961.56/9,709.61
6. Step 6: Final answer
   x = 8,195.70