Finding the Fourth Proportional to 11,303.86, 16,952.55 and 3,906.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,303.86 : 16,952.55 = 3,906.40 : x
2. Step 2: Convert to fraction form
   11,303.86/16,952.55 = 3,906.40/x
3. Step 3: Cross multiply
   11,303.86x = 16,952.55 × 3,906.40
4. Step 4: Simplify right side
   11,303.86x = 66,223,441.32
5. Step 5: Solve for x
   x = 66,223,441.32/11,303.86
6. Step 6: Final answer
   x = 5,858.48