Finding the Fourth Proportional to 31,431.25, 47,136.82 and 10,367.35

Step by Step Solution

1. Step 1: Write the proportion equation
   31,431.25 : 47,136.82 = 10,367.35 : x
2. Step 2: Convert to fraction form
   31,431.25/47,136.82 = 10,367.35/x
3. Step 3: Cross multiply
   31,431.25x = 47,136.82 × 10,367.35
4. Step 4: Simplify right side
   31,431.25x = 488,683,910.83
5. Step 5: Solve for x
   x = 488,683,910.83/31,431.25
6. Step 6: Final answer
   x = 15,547.71