Finding the Fourth Proportional to 21,576.52, 32,323.31 and 13,232.21

Step by Step Solution

1. Step 1: Write the proportion equation
   21,576.52 : 32,323.31 = 13,232.21 : x
2. Step 2: Convert to fraction form
   21,576.52/32,323.31 = 13,232.21/x
3. Step 3: Cross multiply
   21,576.52x = 32,323.31 × 13,232.21
4. Step 4: Simplify right side
   21,576.52x = 427,708,825.82
5. Step 5: Solve for x
   x = 427,708,825.82/21,576.52
6. Step 6: Final answer
   x = 19,822.88