Finding the Fourth Proportional to 9,916.12, 13,679.04 and 5,936.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,916.12 : 13,679.04 = 5,936.05 : x
2. Step 2: Convert to fraction form
   9,916.12/13,679.04 = 5,936.05/x
3. Step 3: Cross multiply
   9,916.12x = 13,679.04 × 5,936.05
4. Step 4: Simplify right side
   9,916.12x = 81,199,465.39
5. Step 5: Solve for x
   x = 81,199,465.39/9,916.12
6. Step 6: Final answer
   x = 8,188.63