Finding the Fourth Proportional to 21,575.96, 32,371.71 and 7,538.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,575.96 : 32,371.71 = 7,538.05 : x
2. Step 2: Convert to fraction form
   21,575.96/32,371.71 = 7,538.05/x
3. Step 3: Cross multiply
   21,575.96x = 32,371.71 × 7,538.05
4. Step 4: Simplify right side
   21,575.96x = 244,019,580.76
5. Step 5: Solve for x
   x = 244,019,580.76/21,575.96
6. Step 6: Final answer
   x = 11,309.79