Finding the Fourth Proportional to 105,904.96, 158,831.28 and 31,005.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,904.96 : 158,831.28 = 31,005.76 : x
2. Step 2: Convert to fraction form
   105,904.96/158,831.28 = 31,005.76/x
3. Step 3: Cross multiply
   105,904.96x = 158,831.28 × 31,005.76
4. Step 4: Simplify right side
   105,904.96x = 4,924,684,548.17
5. Step 5: Solve for x
   x = 4,924,684,548.17/105,904.96
6. Step 6: Final answer
   x = 46,500.98