Finding the Fourth Proportional to 9,358.56, 14,040.20 and 2,784.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,358.56 : 14,040.20 = 2,784.72 : x
2. Step 2: Convert to fraction form
   9,358.56/14,040.20 = 2,784.72/x
3. Step 3: Cross multiply
   9,358.56x = 14,040.20 × 2,784.72
4. Step 4: Simplify right side
   9,358.56x = 39,098,025.74
5. Step 5: Solve for x
   x = 39,098,025.74/9,358.56
6. Step 6: Final answer
   x = 4,177.78