Finding the Fourth Proportional to 8,926.30, 13,390.94 and 3,081.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,926.30 : 13,390.94 = 3,081.34 : x
2. Step 2: Convert to fraction form
   8,926.30/13,390.94 = 3,081.34/x
3. Step 3: Cross multiply
   8,926.30x = 13,390.94 × 3,081.34
4. Step 4: Simplify right side
   8,926.30x = 41,262,039.06
5. Step 5: Solve for x
   x = 41,262,039.06/8,926.30
6. Step 6: Final answer
   x = 4,622.52