Finding the Fourth Proportional to 111,921.89, 167,889.42 and 31,953.71

Step by Step Solution

1. Step 1: Write the proportion equation
   111,921.89 : 167,889.42 = 31,953.71 : x
2. Step 2: Convert to fraction form
   111,921.89/167,889.42 = 31,953.71/x
3. Step 3: Cross multiply
   111,921.89x = 167,889.42 × 31,953.71
4. Step 4: Simplify right side
   111,921.89x = 5,364,690,258.47
5. Step 5: Solve for x
   x = 5,364,690,258.47/111,921.89
6. Step 6: Final answer
   x = 47,932.45