Finding the Fourth Proportional to 9,287.10, 13,930.61 and 2,267.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,287.10 : 13,930.61 = 2,267.15 : x
2. Step 2: Convert to fraction form
   9,287.10/13,930.61 = 2,267.15/x
3. Step 3: Cross multiply
   9,287.10x = 13,930.61 × 2,267.15
4. Step 4: Simplify right side
   9,287.10x = 31,582,829.79
5. Step 5: Solve for x
   x = 31,582,829.79/9,287.10
6. Step 6: Final answer
   x = 3,400.72