Finding the Fourth Proportional to 12,116.39, 18,169.82 and 5,099.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,116.39 : 18,169.82 = 5,099.76 : x
2. Step 2: Convert to fraction form
   12,116.39/18,169.82 = 5,099.76/x
3. Step 3: Cross multiply
   12,116.39x = 18,169.82 × 5,099.76
4. Step 4: Simplify right side
   12,116.39x = 92,661,695.74
5. Step 5: Solve for x
   x = 92,661,695.74/12,116.39
6. Step 6: Final answer
   x = 7,647.64