Finding the Fourth Proportional to 9,008.42, 12,431.61 and 5,233.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,008.42 : 12,431.61 = 5,233.76 : x
2. Step 2: Convert to fraction form
   9,008.42/12,431.61 = 5,233.76/x
3. Step 3: Cross multiply
   9,008.42x = 12,431.61 × 5,233.76
4. Step 4: Simplify right side
   9,008.42x = 65,064,063.15
5. Step 5: Solve for x
   x = 65,064,063.15/9,008.42
6. Step 6: Final answer
   x = 7,222.58