Finding the Fourth Proportional to 21,169.72, 31,757.82 and 5,588.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,169.72 : 31,757.82 = 5,588.56 : x
2. Step 2: Convert to fraction form
   21,169.72/31,757.82 = 5,588.56/x
3. Step 3: Cross multiply
   21,169.72x = 31,757.82 × 5,588.56
4. Step 4: Simplify right side
   21,169.72x = 177,480,482.54
5. Step 5: Solve for x
   x = 177,480,482.54/21,169.72
6. Step 6: Final answer
   x = 8,383.70