Finding the Fourth Proportional to 10,487.87, 15,727.70 and 3,910.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,487.87 : 15,727.70 = 3,910.46 : x
2. Step 2: Convert to fraction form
   10,487.87/15,727.70 = 3,910.46/x
3. Step 3: Cross multiply
   10,487.87x = 15,727.70 × 3,910.46
4. Step 4: Simplify right side
   10,487.87x = 61,502,443.55
5. Step 5: Solve for x
   x = 61,502,443.55/10,487.87
6. Step 6: Final answer
   x = 5,864.15