Finding the Fourth Proportional to 21,341.28, 32,013.72 and 7,300.80

Step by Step Solution

1. Step 1: Write the proportion equation
   21,341.28 : 32,013.72 = 7,300.80 : x
2. Step 2: Convert to fraction form
   21,341.28/32,013.72 = 7,300.80/x
3. Step 3: Cross multiply
   21,341.28x = 32,013.72 × 7,300.80
4. Step 4: Simplify right side
   21,341.28x = 233,725,766.98
5. Step 5: Solve for x
   x = 233,725,766.98/21,341.28
6. Step 6: Final answer
   x = 10,951.82