Finding the Fourth Proportional to 16,215.31, 24,325.32 and 5,122.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,215.31 : 24,325.32 = 5,122.81 : x
2. Step 2: Convert to fraction form
   16,215.31/24,325.32 = 5,122.81/x
3. Step 3: Cross multiply
   16,215.31x = 24,325.32 × 5,122.81
4. Step 4: Simplify right side
   16,215.31x = 124,613,992.55
5. Step 5: Solve for x
   x = 124,613,992.55/16,215.31
6. Step 6: Final answer
   x = 7,684.96