Finding the Fourth Proportional to 21,399.20, 32,076.92 and 7,355.01

Step by Step Solution

1. Step 1: Write the proportion equation
   21,399.20 : 32,076.92 = 7,355.01 : x
2. Step 2: Convert to fraction form
   21,399.20/32,076.92 = 7,355.01/x
3. Step 3: Cross multiply
   21,399.20x = 32,076.92 × 7,355.01
4. Step 4: Simplify right side
   21,399.20x = 235,926,067.37
5. Step 5: Solve for x
   x = 235,926,067.37/21,399.20
6. Step 6: Final answer
   x = 11,025.00