Finding the Fourth Proportional to 10,386.82, 15,570.98 and 3,811.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,386.82 : 15,570.98 = 3,811.48 : x
2. Step 2: Convert to fraction form
   10,386.82/15,570.98 = 3,811.48/x
3. Step 3: Cross multiply
   10,386.82x = 15,570.98 × 3,811.48
4. Step 4: Simplify right side
   10,386.82x = 59,348,478.85
5. Step 5: Solve for x
   x = 59,348,478.85/10,386.82
6. Step 6: Final answer
   x = 5,713.83