Finding the Fourth Proportional to 31,401.53, 43,310.24 and 21,727.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,401.53 : 43,310.24 = 21,727.09 : x
2. Step 2: Convert to fraction form
   31,401.53/43,310.24 = 21,727.09/x
3. Step 3: Cross multiply
   31,401.53x = 43,310.24 × 21,727.09
4. Step 4: Simplify right side
   31,401.53x = 941,005,482.40
5. Step 5: Solve for x
   x = 941,005,482.40/31,401.53
6. Step 6: Final answer
   x = 29,966.87