Finding the Fourth Proportional to 9,953.28, 13,734.77 and 5,704.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,953.28 : 13,734.77 = 5,704.29 : x
2. Step 2: Convert to fraction form
   9,953.28/13,734.77 = 5,704.29/x
3. Step 3: Cross multiply
   9,953.28x = 13,734.77 × 5,704.29
4. Step 4: Simplify right side
   9,953.28x = 78,347,082.64
5. Step 5: Solve for x
   x = 78,347,082.64/9,953.28
6. Step 6: Final answer
   x = 7,871.48