Finding the Fourth Proportional to 111,961.53, 167,916.15 and 31,997.29

Step by Step Solution

1. Step 1: Write the proportion equation
   111,961.53 : 167,916.15 = 31,997.29 : x
2. Step 2: Convert to fraction form
   111,961.53/167,916.15 = 31,997.29/x
3. Step 3: Cross multiply
   111,961.53x = 167,916.15 × 31,997.29
4. Step 4: Simplify right side
   111,961.53x = 5,372,861,923.41
5. Step 5: Solve for x
   x = 5,372,861,923.41/111,961.53
6. Step 6: Final answer
   x = 47,988.47