Finding the Fourth Proportional to 21,359.23, 32,058.72 and 10,836.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,359.23 : 32,058.72 = 10,836.72 : x
2. Step 2: Convert to fraction form
   21,359.23/32,058.72 = 10,836.72/x
3. Step 3: Cross multiply
   21,359.23x = 32,058.72 × 10,836.72
4. Step 4: Simplify right side
   21,359.23x = 347,411,372.20
5. Step 5: Solve for x
   x = 347,411,372.20/21,359.23
6. Step 6: Final answer
   x = 16,265.17