Finding the Fourth Proportional to 21,925.76, 32,916.34 and 17,538.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,925.76 : 32,916.34 = 17,538.10 : x
2. Step 2: Convert to fraction form
   21,925.76/32,916.34 = 17,538.10/x
3. Step 3: Cross multiply
   21,925.76x = 32,916.34 × 17,538.10
4. Step 4: Simplify right side
   21,925.76x = 577,290,062.55
5. Step 5: Solve for x
   x = 577,290,062.55/21,925.76
6. Step 6: Final answer
   x = 26,329.31