Finding the Fourth Proportional to 9,288.96, 13,930.46 and 3,047.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,288.96 : 13,930.46 = 3,047.28 : x
2. Step 2: Convert to fraction form
   9,288.96/13,930.46 = 3,047.28/x
3. Step 3: Cross multiply
   9,288.96x = 13,930.46 × 3,047.28
4. Step 4: Simplify right side
   9,288.96x = 42,450,012.15
5. Step 5: Solve for x
   x = 42,450,012.15/9,288.96
6. Step 6: Final answer
   x = 4,569.94