Finding the Fourth Proportional to 21,871.42, 32,812.32 and 7,080.33

Step by Step Solution

1. Step 1: Write the proportion equation
   21,871.42 : 32,812.32 = 7,080.33 : x
2. Step 2: Convert to fraction form
   21,871.42/32,812.32 = 7,080.33/x
3. Step 3: Cross multiply
   21,871.42x = 32,812.32 × 7,080.33
4. Step 4: Simplify right side
   21,871.42x = 232,322,018.69
5. Step 5: Solve for x
   x = 232,322,018.69/21,871.42
6. Step 6: Final answer
   x = 10,622.17