Finding the Fourth Proportional to 23,401.60, 32,286.72 and 16,688.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,401.60 : 32,286.72 = 16,688.32 : x
2. Step 2: Convert to fraction form
   23,401.60/32,286.72 = 16,688.32/x
3. Step 3: Cross multiply
   23,401.60x = 32,286.72 × 16,688.32
4. Step 4: Simplify right side
   23,401.60x = 538,811,115.11
5. Step 5: Solve for x
   x = 538,811,115.11/23,401.60
6. Step 6: Final answer
   x = 23,024.54