Finding the Fourth Proportional to 10,186.77, 14,057.69 and 5,710.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,186.77 : 14,057.69 = 5,710.53 : x
2. Step 2: Convert to fraction form
   10,186.77/14,057.69 = 5,710.53/x
3. Step 3: Cross multiply
   10,186.77x = 14,057.69 × 5,710.53
4. Step 4: Simplify right side
   10,186.77x = 80,276,860.48
5. Step 5: Solve for x
   x = 80,276,860.48/10,186.77
6. Step 6: Final answer
   x = 7,880.50