Finding the Fourth Proportional to 11,969.92, 17,952.42 and 4,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,969.92 : 17,952.42 = 4,572.72 : x
2. Step 2: Convert to fraction form
   11,969.92/17,952.42 = 4,572.72/x
3. Step 3: Cross multiply
   11,969.92x = 17,952.42 × 4,572.72
4. Step 4: Simplify right side
   11,969.92x = 82,091,389.98
5. Step 5: Solve for x
   x = 82,091,389.98/11,969.92
6. Step 6: Final answer
   x = 6,858.14