Finding the Fourth Proportional to 21,636.72, 32,398.46 and 17,397.45

Step by Step Solution

1. Step 1: Write the proportion equation
   21,636.72 : 32,398.46 = 17,397.45 : x
2. Step 2: Convert to fraction form
   21,636.72/32,398.46 = 17,397.45/x
3. Step 3: Cross multiply
   21,636.72x = 32,398.46 × 17,397.45
4. Step 4: Simplify right side
   21,636.72x = 563,650,500.94
5. Step 5: Solve for x
   x = 563,650,500.94/21,636.72
6. Step 6: Final answer
   x = 26,050.64