Finding the Fourth Proportional to 111,260.82, 166,871.29 and 31,279.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,260.82 : 166,871.29 = 31,279.60 : x
2. Step 2: Convert to fraction form
   111,260.82/166,871.29 = 31,279.60/x
3. Step 3: Cross multiply
   111,260.82x = 166,871.29 × 31,279.60
4. Step 4: Simplify right side
   111,260.82x = 5,219,667,588.38
5. Step 5: Solve for x
   x = 5,219,667,588.38/111,260.82
6. Step 6: Final answer
   x = 46,913.80