Finding the Fourth Proportional to 11,642.12, 16,061.38 and 7,164.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,642.12 : 16,061.38 = 7,164.52 : x
2. Step 2: Convert to fraction form
   11,642.12/16,061.38 = 7,164.52/x
3. Step 3: Cross multiply
   11,642.12x = 16,061.38 × 7,164.52
4. Step 4: Simplify right side
   11,642.12x = 115,072,078.24
5. Step 5: Solve for x
   x = 115,072,078.24/11,642.12
6. Step 6: Final answer
   x = 9,884.12