Finding the Fourth Proportional to 9,519.94, 14,280.59 and 2,945.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,519.94 : 14,280.59 = 2,945.28 : x
2. Step 2: Convert to fraction form
   9,519.94/14,280.59 = 2,945.28/x
3. Step 3: Cross multiply
   9,519.94x = 14,280.59 × 2,945.28
4. Step 4: Simplify right side
   9,519.94x = 42,060,343.48
5. Step 5: Solve for x
   x = 42,060,343.48/9,519.94
6. Step 6: Final answer
   x = 4,418.13