Finding the Fourth Proportional to 5,093.31, 7,641.45 and 2,629.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,093.31 : 7,641.45 = 2,629.89 : x
2. Step 2: Convert to fraction form
   5,093.31/7,641.45 = 2,629.89/x
3. Step 3: Cross multiply
   5,093.31x = 7,641.45 × 2,629.89
4. Step 4: Simplify right side
   5,093.31x = 20,096,172.94
5. Step 5: Solve for x
   x = 20,096,172.94/5,093.31
6. Step 6: Final answer
   x = 3,945.60