Finding the Fourth Proportional to 12,084.32, 18,126.56 and 3,320.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,084.32 : 18,126.56 = 3,320.16 : x
2. Step 2: Convert to fraction form
   12,084.32/18,126.56 = 3,320.16/x
3. Step 3: Cross multiply
   12,084.32x = 18,126.56 × 3,320.16
4. Step 4: Simplify right side
   12,084.32x = 60,183,079.45
5. Step 5: Solve for x
   x = 60,183,079.45/12,084.32
6. Step 6: Final answer
   x = 4,980.26