Finding the Fourth Proportional to 105,992.24, 158,989.26 and 31,113.62

Step by Step Solution

1. Step 1: Write the proportion equation
   105,992.24 : 158,989.26 = 31,113.62 : x
2. Step 2: Convert to fraction form
   105,992.24/158,989.26 = 31,113.62/x
3. Step 3: Cross multiply
   105,992.24x = 158,989.26 × 31,113.62
4. Step 4: Simplify right side
   105,992.24x = 4,946,731,419.72
5. Step 5: Solve for x
   x = 4,946,731,419.72/105,992.24
6. Step 6: Final answer
   x = 46,670.69