Finding the Fourth Proportional to 21,445, 32,184.78 and 11,059.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,445 : 32,184.78 = 11,059.72 : x
2. Step 2: Convert to fraction form
   21,445/32,184.78 = 11,059.72/x
3. Step 3: Cross multiply
   21,445x = 32,184.78 × 11,059.72
4. Step 4: Simplify right side
   21,445x = 355,954,655.06
5. Step 5: Solve for x
   x = 355,954,655.06/21,445
6. Step 6: Final answer
   x = 16,598.49