Finding the Fourth Proportional to 21,086.94, 31,601.25 and 17,950.62

Step by Step Solution

1. Step 1: Write the proportion equation
   21,086.94 : 31,601.25 = 17,950.62 : x
2. Step 2: Convert to fraction form
   21,086.94/31,601.25 = 17,950.62/x
3. Step 3: Cross multiply
   21,086.94x = 31,601.25 × 17,950.62
4. Step 4: Simplify right side
   21,086.94x = 567,262,030.28
5. Step 5: Solve for x
   x = 567,262,030.28/21,086.94
6. Step 6: Final answer
   x = 26,901.11