Finding the Fourth Proportional to 12,876.22, 17,700.86 and 11,077.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,876.22 : 17,700.86 = 11,077.12 : x
2. Step 2: Convert to fraction form
   12,876.22/17,700.86 = 11,077.12/x
3. Step 3: Cross multiply
   12,876.22x = 17,700.86 × 11,077.12
4. Step 4: Simplify right side
   12,876.22x = 196,074,550.32
5. Step 5: Solve for x
   x = 196,074,550.32/12,876.22
6. Step 6: Final answer
   x = 15,227.65