Finding the Fourth Proportional to 111,672.60, 167,515.28 and 31,704.31

Step by Step Solution

1. Step 1: Write the proportion equation
   111,672.60 : 167,515.28 = 31,704.31 : x
2. Step 2: Convert to fraction form
   111,672.60/167,515.28 = 31,704.31/x
3. Step 3: Cross multiply
   111,672.60x = 167,515.28 × 31,704.31
4. Step 4: Simplify right side
   111,672.60x = 5,310,956,366.86
5. Step 5: Solve for x
   x = 5,310,956,366.86/111,672.60
6. Step 6: Final answer
   x = 47,558.28