Finding the Fourth Proportional to 23,687.48, 32,688.72 and 13,077.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,687.48 : 32,688.72 = 13,077.12 : x
2. Step 2: Convert to fraction form
   23,687.48/32,688.72 = 13,077.12/x
3. Step 3: Cross multiply
   23,687.48x = 32,688.72 × 13,077.12
4. Step 4: Simplify right side
   23,687.48x = 427,474,314.09
5. Step 5: Solve for x
   x = 427,474,314.09/23,687.48
6. Step 6: Final answer
   x = 18,046.42