Finding the Fourth Proportional to 12,074.40, 16,641.72 and 9,084.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,074.40 : 16,641.72 = 9,084.96 : x
2. Step 2: Convert to fraction form
   12,074.40/16,641.72 = 9,084.96/x
3. Step 3: Cross multiply
   12,074.40x = 16,641.72 × 9,084.96
4. Step 4: Simplify right side
   12,074.40x = 151,189,360.53
5. Step 5: Solve for x
   x = 151,189,360.53/12,074.40
6. Step 6: Final answer
   x = 12,521.48