Finding the Fourth Proportional to 14,245.10, 19,657.37 and 7,871.54

Step by Step Solution

1. Step 1: Write the proportion equation
   14,245.10 : 19,657.37 = 7,871.54 : x
2. Step 2: Convert to fraction form
   14,245.10/19,657.37 = 7,871.54/x
3. Step 3: Cross multiply
   14,245.10x = 19,657.37 × 7,871.54
4. Step 4: Simplify right side
   14,245.10x = 154,733,734.89
5. Step 5: Solve for x
   x = 154,733,734.89/14,245.10
6. Step 6: Final answer
   x = 10,862.25