Finding the Fourth Proportional to 9,516.61, 14,276.28 and 2,943.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,516.61 : 14,276.28 = 2,943.31 : x
2. Step 2: Convert to fraction form
   9,516.61/14,276.28 = 2,943.31/x
3. Step 3: Cross multiply
   9,516.61x = 14,276.28 × 2,943.31
4. Step 4: Simplify right side
   9,516.61x = 42,019,517.69
5. Step 5: Solve for x
   x = 42,019,517.69/9,516.61
6. Step 6: Final answer
   x = 4,415.39