Finding the Fourth Proportional to 21,366.72, 32,006.56 and 17,432

Step by Step Solution

1. Step 1: Write the proportion equation
   21,366.72 : 32,006.56 = 17,432 : x
2. Step 2: Convert to fraction form
   21,366.72/32,006.56 = 17,432/x
3. Step 3: Cross multiply
   21,366.72x = 32,006.56 × 17,432
4. Step 4: Simplify right side
   21,366.72x = 557,938,353.92
5. Step 5: Solve for x
   x = 557,938,353.92/21,366.72
6. Step 6: Final answer
   x = 26,112.49