Finding the Fourth Proportional to 5,912.34, 8,099.87 and 5,690.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,912.34 : 8,099.87 = 5,690.76 : x
2. Step 2: Convert to fraction form
   5,912.34/8,099.87 = 5,690.76/x
3. Step 3: Cross multiply
   5,912.34x = 8,099.87 × 5,690.76
4. Step 4: Simplify right side
   5,912.34x = 46,094,387.75
5. Step 5: Solve for x
   x = 46,094,387.75/5,912.34
6. Step 6: Final answer
   x = 7,796.30