Finding the Fourth Proportional to 21,662.06, 32,488.43 and 12,650.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,662.06 : 32,488.43 = 12,650.16 : x
2. Step 2: Convert to fraction form
   21,662.06/32,488.43 = 12,650.16/x
3. Step 3: Cross multiply
   21,662.06x = 32,488.43 × 12,650.16
4. Step 4: Simplify right side
   21,662.06x = 410,983,774.40
5. Step 5: Solve for x
   x = 410,983,774.40/21,662.06
6. Step 6: Final answer
   x = 18,972.51