Finding the Fourth Proportional to 19,600.90, 27,047.72 and 12,047.12

Step by Step Solution

1. Step 1: Write the proportion equation
   19,600.90 : 27,047.72 = 12,047.12 : x
2. Step 2: Convert to fraction form
   19,600.90/27,047.72 = 12,047.12/x
3. Step 3: Cross multiply
   19,600.90x = 27,047.72 × 12,047.12
4. Step 4: Simplify right side
   19,600.90x = 325,847,128.57
5. Step 5: Solve for x
   x = 325,847,128.57/19,600.90
6. Step 6: Final answer
   x = 16,624.09