Finding the Fourth Proportional to 111,397.13, 167,105.56 and 31,435.81

Step by Step Solution

1. Step 1: Write the proportion equation
   111,397.13 : 167,105.56 = 31,435.81 : x
2. Step 2: Convert to fraction form
   111,397.13/167,105.56 = 31,435.81/x
3. Step 3: Cross multiply
   111,397.13x = 167,105.56 × 31,435.81
4. Step 4: Simplify right side
   111,397.13x = 5,253,097,641.40
5. Step 5: Solve for x
   x = 5,253,097,641.40/111,397.13
6. Step 6: Final answer
   x = 47,156.49