Finding the Fourth Proportional to 111,398.69, 167,107.90 and 31,437.37

Step by Step Solution

1. Step 1: Write the proportion equation
   111,398.69 : 167,107.90 = 31,437.37 : x
2. Step 2: Convert to fraction form
   111,398.69/167,107.90 = 31,437.37/x
3. Step 3: Cross multiply
   111,398.69x = 167,107.90 × 31,437.37
4. Step 4: Simplify right side
   111,398.69x = 5,253,432,882.22
5. Step 5: Solve for x
   x = 5,253,432,882.22/111,398.69
6. Step 6: Final answer
   x = 47,158.84