Finding the Fourth Proportional to 5,139.78, 7,664.55 and 5,093.01

Step by Step Solution

1. Step 1: Write the proportion equation
   5,139.78 : 7,664.55 = 5,093.01 : x
2. Step 2: Convert to fraction form
   5,139.78/7,664.55 = 5,093.01/x
3. Step 3: Cross multiply
   5,139.78x = 7,664.55 × 5,093.01
4. Step 4: Simplify right side
   5,139.78x = 39,035,629.80
5. Step 5: Solve for x
   x = 39,035,629.80/5,139.78
6. Step 6: Final answer
   x = 7,594.81