Finding the Fourth Proportional to 21,923.52, 32,868.82 and 7,123.60

Step by Step Solution

1. Step 1: Write the proportion equation
   21,923.52 : 32,868.82 = 7,123.60 : x
2. Step 2: Convert to fraction form
   21,923.52/32,868.82 = 7,123.60/x
3. Step 3: Cross multiply
   21,923.52x = 32,868.82 × 7,123.60
4. Step 4: Simplify right side
   21,923.52x = 234,144,326.15
5. Step 5: Solve for x
   x = 234,144,326.15/21,923.52
6. Step 6: Final answer
   x = 10,680.05