Finding the Fourth Proportional to 21,622.50, 32,381.51 and 10,501.74

Step by Step Solution

1. Step 1: Write the proportion equation
   21,622.50 : 32,381.51 = 10,501.74 : x
2. Step 2: Convert to fraction form
   21,622.50/32,381.51 = 10,501.74/x
3. Step 3: Cross multiply
   21,622.50x = 32,381.51 × 10,501.74
4. Step 4: Simplify right side
   21,622.50x = 340,062,146.32
5. Step 5: Solve for x
   x = 340,062,146.32/21,622.50
6. Step 6: Final answer
   x = 15,727.24