Finding the Fourth Proportional to 9,405.51, 14,104.69 and 3,078.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,405.51 : 14,104.69 = 3,078.91 : x
2. Step 2: Convert to fraction form
   9,405.51/14,104.69 = 3,078.91/x
3. Step 3: Cross multiply
   9,405.51x = 14,104.69 × 3,078.91
4. Step 4: Simplify right side
   9,405.51x = 43,427,081.02
5. Step 5: Solve for x
   x = 43,427,081.02/9,405.51
6. Step 6: Final answer
   x = 4,617.20