Finding the Fourth Proportional to 12,725.42, 19,089.35 and 3,957.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,725.42 : 19,089.35 = 3,957.98 : x
2. Step 2: Convert to fraction form
   12,725.42/19,089.35 = 3,957.98/x
3. Step 3: Cross multiply
   12,725.42x = 19,089.35 × 3,957.98
4. Step 4: Simplify right side
   12,725.42x = 75,555,245.72
5. Step 5: Solve for x
   x = 75,555,245.72/12,725.42
6. Step 6: Final answer
   x = 5,937.35