Finding the Fourth Proportional to 11,878.62, 16,392.69 and 7,099.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,878.62 : 16,392.69 = 7,099.62 : x
2. Step 2: Convert to fraction form
   11,878.62/16,392.69 = 7,099.62/x
3. Step 3: Cross multiply
   11,878.62x = 16,392.69 × 7,099.62
4. Step 4: Simplify right side
   11,878.62x = 116,381,869.78
5. Step 5: Solve for x
   x = 116,381,869.78/11,878.62
6. Step 6: Final answer
   x = 9,797.59