Finding the Fourth Proportional to 11,678.72, 16,124.97 and 7,208.53

Step by Step Solution

1. Step 1: Write the proportion equation
   11,678.72 : 16,124.97 = 7,208.53 : x
2. Step 2: Convert to fraction form
   11,678.72/16,124.97 = 7,208.53/x
3. Step 3: Cross multiply
   11,678.72x = 16,124.97 × 7,208.53
4. Step 4: Simplify right side
   11,678.72x = 116,237,316.71
5. Step 5: Solve for x
   x = 116,237,316.71/11,678.72
6. Step 6: Final answer
   x = 9,952.92