Finding the Fourth Proportional to 10,111.08, 13,966.92 and 9,167.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,111.08 : 13,966.92 = 9,167.94 : x
2. Step 2: Convert to fraction form
   10,111.08/13,966.92 = 9,167.94/x
3. Step 3: Cross multiply
   10,111.08x = 13,966.92 × 9,167.94
4. Step 4: Simplify right side
   10,111.08x = 128,047,884.54
5. Step 5: Solve for x
   x = 128,047,884.54/10,111.08
6. Step 6: Final answer
   x = 12,664.12