Finding the Fourth Proportional to 8,111.34, 12,168.23 and 2,916

Step by Step Solution

1. Step 1: Write the proportion equation
   8,111.34 : 12,168.23 = 2,916 : x
2. Step 2: Convert to fraction form
   8,111.34/12,168.23 = 2,916/x
3. Step 3: Cross multiply
   8,111.34x = 12,168.23 × 2,916
4. Step 4: Simplify right side
   8,111.34x = 35,482,544.10
5. Step 5: Solve for x
   x = 35,482,544.10/8,111.34
6. Step 6: Final answer
   x = 4,374.44