Finding the Fourth Proportional to 12,383.74, 18,553.98 and 10,317.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,383.74 : 18,553.98 = 10,317.04 : x
2. Step 2: Convert to fraction form
   12,383.74/18,553.98 = 10,317.04/x
3. Step 3: Cross multiply
   12,383.74x = 18,553.98 × 10,317.04
4. Step 4: Simplify right side
   12,383.74x = 191,422,153.82
5. Step 5: Solve for x
   x = 191,422,153.82/12,383.74
6. Step 6: Final answer
   x = 15,457.54