Finding the Fourth Proportional to 21,327.71, 29,444.72 and 14,167.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,327.71 : 29,444.72 = 14,167.31 : x
2. Step 2: Convert to fraction form
   21,327.71/29,444.72 = 14,167.31/x
3. Step 3: Cross multiply
   21,327.71x = 29,444.72 × 14,167.31
4. Step 4: Simplify right side
   21,327.71x = 417,152,258.04
5. Step 5: Solve for x
   x = 417,152,258.04/21,327.71
6. Step 6: Final answer
   x = 19,559.17