Finding the Fourth Proportional to 106,768.55, 160,150.79 and 31,888.91

Step by Step Solution

1. Step 1: Write the proportion equation
   106,768.55 : 160,150.79 = 31,888.91 : x
2. Step 2: Convert to fraction form
   106,768.55/160,150.79 = 31,888.91/x
3. Step 3: Cross multiply
   106,768.55x = 160,150.79 × 31,888.91
4. Step 4: Simplify right side
   106,768.55x = 5,107,033,168.54
5. Step 5: Solve for x
   x = 5,107,033,168.54/106,768.55
6. Step 6: Final answer
   x = 47,832.75