Finding the Fourth Proportional to 9,345.57, 14,018.31 and 3,106.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,345.57 : 14,018.31 = 3,106.05 : x
2. Step 2: Convert to fraction form
   9,345.57/14,018.31 = 3,106.05/x
3. Step 3: Cross multiply
   9,345.57x = 14,018.31 × 3,106.05
4. Step 4: Simplify right side
   9,345.57x = 43,541,571.78
5. Step 5: Solve for x
   x = 43,541,571.78/9,345.57
6. Step 6: Final answer
   x = 4,659.06