Finding the Fourth Proportional to 5,099.42, 7,642 and 2,629.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,099.42 : 7,642 = 2,629.05 : x
2. Step 2: Convert to fraction form
   5,099.42/7,642 = 2,629.05/x
3. Step 3: Cross multiply
   5,099.42x = 7,642 × 2,629.05
4. Step 4: Simplify right side
   5,099.42x = 20,091,200.10
5. Step 5: Solve for x
   x = 20,091,200.10/5,099.42
6. Step 6: Final answer
   x = 3,939.90