Finding the Fourth Proportional to 12,878.33, 17,753.38 and 10,636.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,878.33 : 17,753.38 = 10,636.25 : x
2. Step 2: Convert to fraction form
   12,878.33/17,753.38 = 10,636.25/x
3. Step 3: Cross multiply
   12,878.33x = 17,753.38 × 10,636.25
4. Step 4: Simplify right side
   12,878.33x = 188,829,272.67
5. Step 5: Solve for x
   x = 188,829,272.67/12,878.33
6. Step 6: Final answer
   x = 14,662.56