Finding the Fourth Proportional to 11,831.95, 17,747.86 and 2,947.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,831.95 : 17,747.86 = 2,947.24 : x
2. Step 2: Convert to fraction form
   11,831.95/17,747.86 = 2,947.24/x
3. Step 3: Cross multiply
   11,831.95x = 17,747.86 × 2,947.24
4. Step 4: Simplify right side
   11,831.95x = 52,307,123.42
5. Step 5: Solve for x
   x = 52,307,123.42/11,831.95
6. Step 6: Final answer
   x = 4,420.84