Finding the Fourth Proportional to 23,173.81, 31,980.12 and 13,614.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,173.81 : 31,980.12 = 13,614.10 : x
2. Step 2: Convert to fraction form
   23,173.81/31,980.12 = 13,614.10/x
3. Step 3: Cross multiply
   23,173.81x = 31,980.12 × 13,614.10
4. Step 4: Simplify right side
   23,173.81x = 435,380,551.69
5. Step 5: Solve for x
   x = 435,380,551.69/23,173.81
6. Step 6: Final answer
   x = 18,787.61