Finding the Fourth Proportional to 21,417.10, 32,107.17 and 10,308.51

Step by Step Solution

1. Step 1: Write the proportion equation
   21,417.10 : 32,107.17 = 10,308.51 : x
2. Step 2: Convert to fraction form
   21,417.10/32,107.17 = 10,308.51/x
3. Step 3: Cross multiply
   21,417.10x = 32,107.17 × 10,308.51
4. Step 4: Simplify right side
   21,417.10x = 330,977,083.02
5. Step 5: Solve for x
   x = 330,977,083.02/21,417.10
6. Step 6: Final answer
   x = 15,453.87