Finding the Fourth Proportional to 12,736.10, 19,086.36 and 10,852.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,736.10 : 19,086.36 = 10,852.15 : x
2. Step 2: Convert to fraction form
   12,736.10/19,086.36 = 10,852.15/x
3. Step 3: Cross multiply
   12,736.10x = 19,086.36 × 10,852.15
4. Step 4: Simplify right side
   12,736.10x = 207,128,073.25
5. Step 5: Solve for x
   x = 207,128,073.25/12,736.10
6. Step 6: Final answer
   x = 16,263.06