Finding the Fourth Proportional to 5,259.35, 7,875.34 and 5,103.53

Step by Step Solution

1. Step 1: Write the proportion equation
   5,259.35 : 7,875.34 = 5,103.53 : x
2. Step 2: Convert to fraction form
   5,259.35/7,875.34 = 5,103.53/x
3. Step 3: Cross multiply
   5,259.35x = 7,875.34 × 5,103.53
4. Step 4: Simplify right side
   5,259.35x = 40,192,033.95
5. Step 5: Solve for x
   x = 40,192,033.95/5,259.35
6. Step 6: Final answer
   x = 7,642.02