Finding the Fourth Proportional to 11,881.08, 16,392.78 and 7,162.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,881.08 : 16,392.78 = 7,162.02 : x
2. Step 2: Convert to fraction form
   11,881.08/16,392.78 = 7,162.02/x
3. Step 3: Cross multiply
   11,881.08x = 16,392.78 × 7,162.02
4. Step 4: Simplify right side
   11,881.08x = 117,405,418.22
5. Step 5: Solve for x
   x = 117,405,418.22/11,881.08
6. Step 6: Final answer
   x = 9,881.71