Finding the Fourth Proportional to 21,871.57, 32,812.56 and 7,080.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,871.57 : 32,812.56 = 7,080.48 : x
2. Step 2: Convert to fraction form
   21,871.57/32,812.56 = 7,080.48/x
3. Step 3: Cross multiply
   21,871.57x = 32,812.56 × 7,080.48
4. Step 4: Simplify right side
   21,871.57x = 232,328,674.83
5. Step 5: Solve for x
   x = 232,328,674.83/21,871.57
6. Step 6: Final answer
   x = 10,622.41