Finding the Fourth Proportional to 23,991.56, 33,108.39 and 13,381.88

Step by Step Solution

1. Step 1: Write the proportion equation
   23,991.56 : 33,108.39 = 13,381.88 : x
2. Step 2: Convert to fraction form
   23,991.56/33,108.39 = 13,381.88/x
3. Step 3: Cross multiply
   23,991.56x = 33,108.39 × 13,381.88
4. Step 4: Simplify right side
   23,991.56x = 443,052,336.43
5. Step 5: Solve for x
   x = 443,052,336.43/23,991.56
6. Step 6: Final answer
   x = 18,467.01