Finding the Fourth Proportional to 21,949.32, 32,914.86 and 13,616.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,949.32 : 32,914.86 = 13,616.82 : x
2. Step 2: Convert to fraction form
   21,949.32/32,914.86 = 13,616.82/x
3. Step 3: Cross multiply
   21,949.32x = 32,914.86 × 13,616.82
4. Step 4: Simplify right side
   21,949.32x = 448,195,723.95
5. Step 5: Solve for x
   x = 448,195,723.95/21,949.32
6. Step 6: Final answer
   x = 20,419.57