Finding the Fourth Proportional to 108,257.76, 149,414.72 and 62,949.76

Step by Step Solution

1. Step 1: Write the proportion equation
   108,257.76 : 149,414.72 = 62,949.76 : x
2. Step 2: Convert to fraction form
   108,257.76/149,414.72 = 62,949.76/x
3. Step 3: Cross multiply
   108,257.76x = 149,414.72 × 62,949.76
4. Step 4: Simplify right side
   108,257.76x = 9,405,620,764.47
5. Step 5: Solve for x
   x = 9,405,620,764.47/108,257.76
6. Step 6: Final answer
   x = 86,881.72