Finding the Fourth Proportional to 21,945.88, 32,922.23 and 7,151.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,945.88 : 32,922.23 = 7,151.37 : x
2. Step 2: Convert to fraction form
   21,945.88/32,922.23 = 7,151.37/x
3. Step 3: Cross multiply
   21,945.88x = 32,922.23 × 7,151.37
4. Step 4: Simplify right side
   21,945.88x = 235,439,047.96
5. Step 5: Solve for x
   x = 235,439,047.96/21,945.88
6. Step 6: Final answer
   x = 10,728.17