Finding the Fourth Proportional to 9,210.24, 12,711.06 and 5,434.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,210.24 : 12,711.06 = 5,434.56 : x
2. Step 2: Convert to fraction form
   9,210.24/12,711.06 = 5,434.56/x
3. Step 3: Cross multiply
   9,210.24x = 12,711.06 × 5,434.56
4. Step 4: Simplify right side
   9,210.24x = 69,079,018.23
5. Step 5: Solve for x
   x = 69,079,018.23/9,210.24
6. Step 6: Final answer
   x = 7,500.24