Finding the Fourth Proportional to 19,661.28, 29,499.71 and 7,182.11

Step by Step Solution

1. Step 1: Write the proportion equation
   19,661.28 : 29,499.71 = 7,182.11 : x
2. Step 2: Convert to fraction form
   19,661.28/29,499.71 = 7,182.11/x
3. Step 3: Cross multiply
   19,661.28x = 29,499.71 × 7,182.11
4. Step 4: Simplify right side
   19,661.28x = 211,870,240.43
5. Step 5: Solve for x
   x = 211,870,240.43/19,661.28
6. Step 6: Final answer
   x = 10,776.02