Finding the Fourth Proportional to 12,074.32, 18,084.72 and 9,280.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,074.32 : 18,084.72 = 9,280.42 : x
2. Step 2: Convert to fraction form
   12,074.32/18,084.72 = 9,280.42/x
3. Step 3: Cross multiply
   12,074.32x = 18,084.72 × 9,280.42
4. Step 4: Simplify right side
   12,074.32x = 167,833,797.18
5. Step 5: Solve for x
   x = 167,833,797.18/12,074.32
6. Step 6: Final answer
   x = 13,900.06