Finding the Fourth Proportional to 9,015.27, 12,434.22 and 7,758.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,015.27 : 12,434.22 = 7,758.45 : x
2. Step 2: Convert to fraction form
   9,015.27/12,434.22 = 7,758.45/x
3. Step 3: Cross multiply
   9,015.27x = 12,434.22 × 7,758.45
4. Step 4: Simplify right side
   9,015.27x = 96,470,274.16
5. Step 5: Solve for x
   x = 96,470,274.16/9,015.27
6. Step 6: Final answer
   x = 10,700.76