Finding the Fourth Proportional to 8,009.91, 12,019.74 and 3,079.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,009.91 : 12,019.74 = 3,079.98 : x
2. Step 2: Convert to fraction form
   8,009.91/12,019.74 = 3,079.98/x
3. Step 3: Cross multiply
   8,009.91x = 12,019.74 × 3,079.98
4. Step 4: Simplify right side
   8,009.91x = 37,020,558.81
5. Step 5: Solve for x
   x = 37,020,558.81/8,009.91
6. Step 6: Final answer
   x = 4,621.84