Finding the Fourth Proportional to 11,867.16, 16,373.46 and 7,151.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,867.16 : 16,373.46 = 7,151.40 : x
2. Step 2: Convert to fraction form
   11,867.16/16,373.46 = 7,151.40/x
3. Step 3: Cross multiply
   11,867.16x = 16,373.46 × 7,151.40
4. Step 4: Simplify right side
   11,867.16x = 117,093,161.84
5. Step 5: Solve for x
   x = 117,093,161.84/11,867.16
6. Step 6: Final answer
   x = 9,866.99