Finding the Fourth Proportional to 16,499.90, 24,716.34 and 13,173.77

Step by Step Solution

1. Step 1: Write the proportion equation
   16,499.90 : 24,716.34 = 13,173.77 : x
2. Step 2: Convert to fraction form
   16,499.90/24,716.34 = 13,173.77/x
3. Step 3: Cross multiply
   16,499.90x = 24,716.34 × 13,173.77
4. Step 4: Simplify right side
   16,499.90x = 325,607,378.40
5. Step 5: Solve for x
   x = 325,607,378.40/16,499.90
6. Step 6: Final answer
   x = 19,733.90