Finding the Fourth Proportional to 21,180.06, 31,763.52 and 14,648.22

Step by Step Solution

1. Step 1: Write the proportion equation
   21,180.06 : 31,763.52 = 14,648.22 : x
2. Step 2: Convert to fraction form
   21,180.06/31,763.52 = 14,648.22/x
3. Step 3: Cross multiply
   21,180.06x = 31,763.52 × 14,648.22
4. Step 4: Simplify right side
   21,180.06x = 465,279,028.93
5. Step 5: Solve for x
   x = 465,279,028.93/21,180.06
6. Step 6: Final answer
   x = 21,967.79