Finding the Fourth Proportional to 7,086.75, 10,630.56 and 2,156.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,086.75 : 10,630.56 = 2,156.76 : x
2. Step 2: Convert to fraction form
   7,086.75/10,630.56 = 2,156.76/x
3. Step 3: Cross multiply
   7,086.75x = 10,630.56 × 2,156.76
4. Step 4: Simplify right side
   7,086.75x = 22,927,566.59
5. Step 5: Solve for x
   x = 22,927,566.59/7,086.75
6. Step 6: Final answer
   x = 3,235.27