Finding the Fourth Proportional to 151,831.86, 209,529.64 and 83,848.72

Step by Step Solution

1. Step 1: Write the proportion equation
   151,831.86 : 209,529.64 = 83,848.72 : x
2. Step 2: Convert to fraction form
   151,831.86/209,529.64 = 83,848.72/x
3. Step 3: Cross multiply
   151,831.86x = 209,529.64 × 83,848.72
4. Step 4: Simplify right side
   151,831.86x = 17,568,792,116.06
5. Step 5: Solve for x
   x = 17,568,792,116.06/151,831.86
6. Step 6: Final answer
   x = 115,712.16