Finding the Fourth Proportional to 8,974.67, 12,384.63 and 5,990.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,974.67 : 12,384.63 = 5,990.09 : x
2. Step 2: Convert to fraction form
   8,974.67/12,384.63 = 5,990.09/x
3. Step 3: Cross multiply
   8,974.67x = 12,384.63 × 5,990.09
4. Step 4: Simplify right side
   8,974.67x = 74,185,048.32
5. Step 5: Solve for x
   x = 74,185,048.32/8,974.67
6. Step 6: Final answer
   x = 8,266.05