Finding the Fourth Proportional to 11,831.56, 17,737.98 and 5,905.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,831.56 : 17,737.98 = 5,905.40 : x
2. Step 2: Convert to fraction form
   11,831.56/17,737.98 = 5,905.40/x
3. Step 3: Cross multiply
   11,831.56x = 17,737.98 × 5,905.40
4. Step 4: Simplify right side
   11,831.56x = 104,749,856.03
5. Step 5: Solve for x
   x = 104,749,856.03/11,831.56
6. Step 6: Final answer
   x = 8,853.42