Finding the Fourth Proportional to 111,397.69, 167,106.40 and 31,436.37

Step by Step Solution

1. Step 1: Write the proportion equation
   111,397.69 : 167,106.40 = 31,436.37 : x
2. Step 2: Convert to fraction form
   111,397.69/167,106.40 = 31,436.37/x
3. Step 3: Cross multiply
   111,397.69x = 167,106.40 × 31,436.37
4. Step 4: Simplify right side
   111,397.69x = 5,253,218,619.77
5. Step 5: Solve for x
   x = 5,253,218,619.77/111,397.69
6. Step 6: Final answer
   x = 47,157.34