Finding the Fourth Proportional to 21,293.32, 31,726.01 and 20,101

Step by Step Solution

1. Step 1: Write the proportion equation
   21,293.32 : 31,726.01 = 20,101 : x
2. Step 2: Convert to fraction form
   21,293.32/31,726.01 = 20,101/x
3. Step 3: Cross multiply
   21,293.32x = 31,726.01 × 20,101
4. Step 4: Simplify right side
   21,293.32x = 637,724,527.01
5. Step 5: Solve for x
   x = 637,724,527.01/21,293.32
6. Step 6: Final answer
   x = 29,949.51