Finding the Fourth Proportional to 12,796.49, 17,531.29 and 12,317.11

Step by Step Solution

1. Step 1: Write the proportion equation
   12,796.49 : 17,531.29 = 12,317.11 : x
2. Step 2: Convert to fraction form
   12,796.49/17,531.29 = 12,317.11/x
3. Step 3: Cross multiply
   12,796.49x = 17,531.29 × 12,317.11
4. Step 4: Simplify right side
   12,796.49x = 215,934,827.37
5. Step 5: Solve for x
   x = 215,934,827.37/12,796.49
6. Step 6: Final answer
   x = 16,874.54