Finding the Fourth Proportional to 106,671.69, 160,007.47 and 31,789.91

Step by Step Solution

1. Step 1: Write the proportion equation
   106,671.69 : 160,007.47 = 31,789.91 : x
2. Step 2: Convert to fraction form
   106,671.69/160,007.47 = 31,789.91/x
3. Step 3: Cross multiply
   106,671.69x = 160,007.47 × 31,789.91
4. Step 4: Simplify right side
   106,671.69x = 5,086,623,391.17
5. Step 5: Solve for x
   x = 5,086,623,391.17/106,671.69
6. Step 6: Final answer
   x = 47,684.85