Finding the Fourth Proportional to 21,617.97, 32,374.71 and 17,892.78

Step by Step Solution

1. Step 1: Write the proportion equation
   21,617.97 : 32,374.71 = 17,892.78 : x
2. Step 2: Convert to fraction form
   21,617.97/32,374.71 = 17,892.78/x
3. Step 3: Cross multiply
   21,617.97x = 32,374.71 × 17,892.78
4. Step 4: Simplify right side
   21,617.97x = 579,273,563.59
5. Step 5: Solve for x
   x = 579,273,563.59/21,617.97
6. Step 6: Final answer
   x = 26,795.93