Finding the Fourth Proportional to 29,196.56, 40,291.31 and 16,621.31

Step by Step Solution

1. Step 1: Write the proportion equation
   29,196.56 : 40,291.31 = 16,621.31 : x
2. Step 2: Convert to fraction form
   29,196.56/40,291.31 = 16,621.31/x
3. Step 3: Cross multiply
   29,196.56x = 40,291.31 × 16,621.31
4. Step 4: Simplify right side
   29,196.56x = 669,694,496.10
5. Step 5: Solve for x
   x = 669,694,496.10/29,196.56
6. Step 6: Final answer
   x = 22,937.44