Finding the Fourth Proportional to 106,789.76, 160,182.48 and 31,910.12

Step by Step Solution

1. Step 1: Write the proportion equation
   106,789.76 : 160,182.48 = 31,910.12 : x
2. Step 2: Convert to fraction form
   106,789.76/160,182.48 = 31,910.12/x
3. Step 3: Cross multiply
   106,789.76x = 160,182.48 × 31,910.12
4. Step 4: Simplify right side
   106,789.76x = 5,111,442,158.70
5. Step 5: Solve for x
   x = 5,111,442,158.70/106,789.76
6. Step 6: Final answer
   x = 47,864.53