Finding the Fourth Proportional to 12,932.58, 19,401.75 and 7,086.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,932.58 : 19,401.75 = 7,086.18 : x
2. Step 2: Convert to fraction form
   12,932.58/19,401.75 = 7,086.18/x
3. Step 3: Cross multiply
   12,932.58x = 19,401.75 × 7,086.18
4. Step 4: Simplify right side
   12,932.58x = 137,484,292.82
5. Step 5: Solve for x
   x = 137,484,292.82/12,932.58
6. Step 6: Final answer
   x = 10,630.85