Finding the Fourth Proportional to 9,965.28, 13,754.52 and 5,775.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,965.28 : 13,754.52 = 5,775.96 : x
2. Step 2: Convert to fraction form
   9,965.28/13,754.52 = 5,775.96/x
3. Step 3: Cross multiply
   9,965.28x = 13,754.52 × 5,775.96
4. Step 4: Simplify right side
   9,965.28x = 79,445,557.34
5. Step 5: Solve for x
   x = 79,445,557.34/9,965.28
6. Step 6: Final answer
   x = 7,972.24