Finding the Fourth Proportional to 22,710.15, 31,339.71 and 13,151.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,710.15 : 31,339.71 = 13,151.34 : x
2. Step 2: Convert to fraction form
   22,710.15/31,339.71 = 13,151.34/x
3. Step 3: Cross multiply
   22,710.15x = 31,339.71 × 13,151.34
4. Step 4: Simplify right side
   22,710.15x = 412,159,181.71
5. Step 5: Solve for x
   x = 412,159,181.71/22,710.15
6. Step 6: Final answer
   x = 18,148.68