Finding the Fourth Proportional to 23,058, 31,820.04 and 13,122

Step by Step Solution

1. Step 1: Write the proportion equation
   23,058 : 31,820.04 = 13,122 : x
2. Step 2: Convert to fraction form
   23,058/31,820.04 = 13,122/x
3. Step 3: Cross multiply
   23,058x = 31,820.04 × 13,122
4. Step 4: Simplify right side
   23,058x = 417,542,564.88
5. Step 5: Solve for x
   x = 417,542,564.88/23,058
6. Step 6: Final answer
   x = 18,108.36