Finding the Fourth Proportional to 17,715.15, 24,449.60 and 13,459.23

Step by Step Solution

1. Step 1: Write the proportion equation
   17,715.15 : 24,449.60 = 13,459.23 : x
2. Step 2: Convert to fraction form
   17,715.15/24,449.60 = 13,459.23/x
3. Step 3: Cross multiply
   17,715.15x = 24,449.60 × 13,459.23
4. Step 4: Simplify right side
   17,715.15x = 329,072,722.51
5. Step 5: Solve for x
   x = 329,072,722.51/17,715.15
6. Step 6: Final answer
   x = 18,575.78