Finding the Fourth Proportional to 31,221.27, 46,819.58 and 12,497.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,221.27 : 46,819.58 = 12,497.82 : x
2. Step 2: Convert to fraction form
   31,221.27/46,819.58 = 12,497.82/x
3. Step 3: Cross multiply
   31,221.27x = 46,819.58 × 12,497.82
4. Step 4: Simplify right side
   31,221.27x = 585,142,683.32
5. Step 5: Solve for x
   x = 585,142,683.32/31,221.27
6. Step 6: Final answer
   x = 18,741.80