Finding the Fourth Proportional to 8,061.80, 12,091.34 and 3,678.23

Step by Step Solution

1. Step 1: Write the proportion equation
   8,061.80 : 12,091.34 = 3,678.23 : x
2. Step 2: Convert to fraction form
   8,061.80/12,091.34 = 3,678.23/x
3. Step 3: Cross multiply
   8,061.80x = 12,091.34 × 3,678.23
4. Step 4: Simplify right side
   8,061.80x = 44,474,768.95
5. Step 5: Solve for x
   x = 44,474,768.95/8,061.80
6. Step 6: Final answer
   x = 5,516.73