Finding the Fourth Proportional to 22,389.29, 33,552.54 and 17,688.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,389.29 : 33,552.54 = 17,688.72 : x
2. Step 2: Convert to fraction form
   22,389.29/33,552.54 = 17,688.72/x
3. Step 3: Cross multiply
   22,389.29x = 33,552.54 × 17,688.72
4. Step 4: Simplify right side
   22,389.29x = 593,501,485.35
5. Step 5: Solve for x
   x = 593,501,485.35/22,389.29
6. Step 6: Final answer
   x = 26,508.28