Finding the Fourth Proportional to 16,301.61, 24,434.78 and 7,987.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,301.61 : 24,434.78 = 7,987.23 : x
2. Step 2: Convert to fraction form
   16,301.61/24,434.78 = 7,987.23/x
3. Step 3: Cross multiply
   16,301.61x = 24,434.78 × 7,987.23
4. Step 4: Simplify right side
   16,301.61x = 195,166,167.92
5. Step 5: Solve for x
   x = 195,166,167.92/16,301.61
6. Step 6: Final answer
   x = 11,972.20