Finding the Fourth Proportional to 12,695.82, 17,518.06 and 7,917.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,695.82 : 17,518.06 = 7,917.27 : x
2. Step 2: Convert to fraction form
   12,695.82/17,518.06 = 7,917.27/x
3. Step 3: Cross multiply
   12,695.82x = 17,518.06 × 7,917.27
4. Step 4: Simplify right side
   12,695.82x = 138,695,153.13
5. Step 5: Solve for x
   x = 138,695,153.13/12,695.82
6. Step 6: Final answer
   x = 10,924.47