Finding the Fourth Proportional to 5,800.31, 8,658.46 and 5,099.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,800.31 : 8,658.46 = 5,099.69 : x
2. Step 2: Convert to fraction form
   5,800.31/8,658.46 = 5,099.69/x
3. Step 3: Cross multiply
   5,800.31x = 8,658.46 × 5,099.69
4. Step 4: Simplify right side
   5,800.31x = 44,155,461.88
5. Step 5: Solve for x
   x = 44,155,461.88/5,800.31
6. Step 6: Final answer
   x = 7,612.60