Finding the Fourth Proportional to 23,738.22, 32,758.96 and 13,128.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,738.22 : 32,758.96 = 13,128.56 : x
2. Step 2: Convert to fraction form
   23,738.22/32,758.96 = 13,128.56/x
3. Step 3: Cross multiply
   23,738.22x = 32,758.96 × 13,128.56
4. Step 4: Simplify right side
   23,738.22x = 430,077,971.90
5. Step 5: Solve for x
   x = 430,077,971.90/23,738.22
6. Step 6: Final answer
   x = 18,117.53