Finding the Fourth Proportional to 7,016.90, 10,527.42 and 2,086.64

Step by Step Solution

1. Step 1: Write the proportion equation
   7,016.90 : 10,527.42 = 2,086.64 : x
2. Step 2: Convert to fraction form
   7,016.90/10,527.42 = 2,086.64/x
3. Step 3: Cross multiply
   7,016.90x = 10,527.42 × 2,086.64
4. Step 4: Simplify right side
   7,016.90x = 21,966,935.67
5. Step 5: Solve for x
   x = 21,966,935.67/7,016.90
6. Step 6: Final answer
   x = 3,130.58