Finding the Fourth Proportional to 9,764.42, 13,474.94 and 5,288.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,764.42 : 13,474.94 = 5,288.18 : x
2. Step 2: Convert to fraction form
   9,764.42/13,474.94 = 5,288.18/x
3. Step 3: Cross multiply
   9,764.42x = 13,474.94 × 5,288.18
4. Step 4: Simplify right side
   9,764.42x = 71,257,814.39
5. Step 5: Solve for x
   x = 71,257,814.39/9,764.42
6. Step 6: Final answer
   x = 7,297.70