Finding the Fourth Proportional to 21,577.46, 32,386.35 and 11,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,577.46 : 32,386.35 = 11,196.50 : x
2. Step 2: Convert to fraction form
   21,577.46/32,386.35 = 11,196.50/x
3. Step 3: Cross multiply
   21,577.46x = 32,386.35 × 11,196.50
4. Step 4: Simplify right side
   21,577.46x = 362,613,767.78
5. Step 5: Solve for x
   x = 362,613,767.78/21,577.46
6. Step 6: Final answer
   x = 16,805.21