Finding the Fourth Proportional to 23,631.34, 35,457.43 and 12,535.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,631.34 : 35,457.43 = 12,535.31 : x
2. Step 2: Convert to fraction form
   23,631.34/35,457.43 = 12,535.31/x
3. Step 3: Cross multiply
   23,631.34x = 35,457.43 × 12,535.31
4. Step 4: Simplify right side
   23,631.34x = 444,469,811.10
5. Step 5: Solve for x
   x = 444,469,811.10/23,631.34
6. Step 6: Final answer
   x = 18,808.49