Finding the Fourth Proportional to 8,061.90, 12,088.80 and 3,674.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,061.90 : 12,088.80 = 3,674.40 : x
2. Step 2: Convert to fraction form
   8,061.90/12,088.80 = 3,674.40/x
3. Step 3: Cross multiply
   8,061.90x = 12,088.80 × 3,674.40
4. Step 4: Simplify right side
   8,061.90x = 44,419,086.72
5. Step 5: Solve for x
   x = 44,419,086.72/8,061.90
6. Step 6: Final answer
   x = 5,509.75