Finding the Fourth Proportional to 7,086.34, 10,630.55 and 2,642.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,086.34 : 10,630.55 = 2,642.86 : x
2. Step 2: Convert to fraction form
   7,086.34/10,630.55 = 2,642.86/x
3. Step 3: Cross multiply
   7,086.34x = 10,630.55 × 2,642.86
4. Step 4: Simplify right side
   7,086.34x = 28,095,055.37
5. Step 5: Solve for x
   x = 28,095,055.37/7,086.34
6. Step 6: Final answer
   x = 3,964.68