Finding the Fourth Proportional to 23,066.34, 31,820.49 and 15,105.06

Step by Step Solution

1. Step 1: Write the proportion equation
   23,066.34 : 31,820.49 = 15,105.06 : x
2. Step 2: Convert to fraction form
   23,066.34/31,820.49 = 15,105.06/x
3. Step 3: Cross multiply
   23,066.34x = 31,820.49 × 15,105.06
4. Step 4: Simplify right side
   23,066.34x = 480,650,410.68
5. Step 5: Solve for x
   x = 480,650,410.68/23,066.34
6. Step 6: Final answer
   x = 20,837.74