Finding the Fourth Proportional to 9,513.12, 14,271.88 and 2,939.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,513.12 : 14,271.88 = 2,939.16 : x
2. Step 2: Convert to fraction form
   9,513.12/14,271.88 = 2,939.16/x
3. Step 3: Cross multiply
   9,513.12x = 14,271.88 × 2,939.16
4. Step 4: Simplify right side
   9,513.12x = 41,947,338.82
5. Step 5: Solve for x
   x = 41,947,338.82/9,513.12
6. Step 6: Final answer
   x = 4,409.42