Finding the Fourth Proportional to 105,913.14, 158,891.58 and 31,035.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105,913.14 : 158,891.58 = 31,035.72 : x
2. Step 2: Convert to fraction form
   105,913.14/158,891.58 = 31,035.72/x
3. Step 3: Cross multiply
   105,913.14x = 158,891.58 × 31,035.72
4. Step 4: Simplify right side
   105,913.14x = 4,931,314,587.24
5. Step 5: Solve for x
   x = 4,931,314,587.24/105,913.14
6. Step 6: Final answer
   x = 46,559.99