Finding the Fourth Proportional to 21,633.42, 32,438.52 and 11,099.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,633.42 : 32,438.52 = 11,099.10 : x
2. Step 2: Convert to fraction form
   21,633.42/32,438.52 = 11,099.10/x
3. Step 3: Cross multiply
   21,633.42x = 32,438.52 × 11,099.10
4. Step 4: Simplify right side
   21,633.42x = 360,038,377.33
5. Step 5: Solve for x
   x = 360,038,377.33/21,633.42
6. Step 6: Final answer
   x = 16,642.69