Finding the Fourth Proportional to 21,293.82, 31,726.76 and 20,101.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,293.82 : 31,726.76 = 20,101.50 : x
2. Step 2: Convert to fraction form
   21,293.82/31,726.76 = 20,101.50/x
3. Step 3: Cross multiply
   21,293.82x = 31,726.76 × 20,101.50
4. Step 4: Simplify right side
   21,293.82x = 637,755,365.63
5. Step 5: Solve for x
   x = 637,755,365.63/21,293.82
6. Step 6: Final answer
   x = 29,950.26