Finding the Fourth Proportional to 9,906.07, 14,863.94 and 4,358.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,906.07 : 14,863.94 = 4,358.72 : x
2. Step 2: Convert to fraction form
   9,906.07/14,863.94 = 4,358.72/x
3. Step 3: Cross multiply
   9,906.07x = 14,863.94 × 4,358.72
4. Step 4: Simplify right side
   9,906.07x = 64,787,752.56
5. Step 5: Solve for x
   x = 64,787,752.56/9,906.07
6. Step 6: Final answer
   x = 6,540.21