Finding the Fourth Proportional to 9,944.16, 14,920.18 and 4,099.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,944.16 : 14,920.18 = 4,099.40 : x
2. Step 2: Convert to fraction form
   9,944.16/14,920.18 = 4,099.40/x
3. Step 3: Cross multiply
   9,944.16x = 14,920.18 × 4,099.40
4. Step 4: Simplify right side
   9,944.16x = 61,163,785.89
5. Step 5: Solve for x
   x = 61,163,785.89/9,944.16
6. Step 6: Final answer
   x = 6,150.72