Finding the Fourth Proportional to 7,156.89, 9,854.06 and 6,500.79

Step by Step Solution

1. Step 1: Write the proportion equation
   7,156.89 : 9,854.06 = 6,500.79 : x
2. Step 2: Convert to fraction form
   7,156.89/9,854.06 = 6,500.79/x
3. Step 3: Cross multiply
   7,156.89x = 9,854.06 × 6,500.79
4. Step 4: Simplify right side
   7,156.89x = 64,059,142.20
5. Step 5: Solve for x
   x = 64,059,142.20/7,156.89
6. Step 6: Final answer
   x = 8,950.70