Finding the Fourth Proportional to 12,086.60, 18,119.56 and 4,696.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086.60 : 18,119.56 = 4,696.36 : x
2. Step 2: Convert to fraction form
   12,086.60/18,119.56 = 4,696.36/x
3. Step 3: Cross multiply
   12,086.60x = 18,119.56 × 4,696.36
4. Step 4: Simplify right side
   12,086.60x = 85,095,976.80
5. Step 5: Solve for x
   x = 85,095,976.80/12,086.60
6. Step 6: Final answer
   x = 7,040.52