Finding the Fourth Proportional to 12,086.41, 18,128.25 and 4,696.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086.41 : 18,128.25 = 4,696.17 : x
2. Step 2: Convert to fraction form
   12,086.41/18,128.25 = 4,696.17/x
3. Step 3: Cross multiply
   12,086.41x = 18,128.25 × 4,696.17
4. Step 4: Simplify right side
   12,086.41x = 85,133,320.32
5. Step 5: Solve for x
   x = 85,133,320.32/12,086.41
6. Step 6: Final answer
   x = 7,043.72