Finding the Fourth Proportional to 111,392.35, 167,098.34 and 31,431.01

Step by Step Solution

1. Step 1: Write the proportion equation
   111,392.35 : 167,098.34 = 31,431.01 : x
2. Step 2: Convert to fraction form
   111,392.35/167,098.34 = 31,431.01/x
3. Step 3: Cross multiply
   111,392.35x = 167,098.34 × 31,431.01
4. Step 4: Simplify right side
   111,392.35x = 5,252,070,013.27
5. Step 5: Solve for x
   x = 5,252,070,013.27/111,392.35
6. Step 6: Final answer
   x = 47,149.29