Finding the Fourth Proportional to 17,664.72, 24,377.52 and 9,706.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,664.72 : 24,377.52 = 9,706.80 : x
2. Step 2: Convert to fraction form
   17,664.72/24,377.52 = 9,706.80/x
3. Step 3: Cross multiply
   17,664.72x = 24,377.52 × 9,706.80
4. Step 4: Simplify right side
   17,664.72x = 236,627,711.14
5. Step 5: Solve for x
   x = 236,627,711.14/17,664.72
6. Step 6: Final answer
   x = 13,395.50