Finding the Fourth Proportional to 23,558.76, 32,509.86 and 12,949.80

Step by Step Solution

1. Step 1: Write the proportion equation
   23,558.76 : 32,509.86 = 12,949.80 : x
2. Step 2: Convert to fraction form
   23,558.76/32,509.86 = 12,949.80/x
3. Step 3: Cross multiply
   23,558.76x = 32,509.86 × 12,949.80
4. Step 4: Simplify right side
   23,558.76x = 420,996,185.03
5. Step 5: Solve for x
   x = 420,996,185.03/23,558.76
6. Step 6: Final answer
   x = 17,870.05