Finding the Fourth Proportional to 7,455.89, 10,289.15 and 4,099.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,455.89 : 10,289.15 = 4,099.05 : x
2. Step 2: Convert to fraction form
   7,455.89/10,289.15 = 4,099.05/x
3. Step 3: Cross multiply
   7,455.89x = 10,289.15 × 4,099.05
4. Step 4: Simplify right side
   7,455.89x = 42,175,750.56
5. Step 5: Solve for x
   x = 42,175,750.56/7,455.89
6. Step 6: Final answer
   x = 5,656.70