Finding the Fourth Proportional to 5,103.73, 7,642.63 and 4,075.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,103.73 : 7,642.63 = 4,075.57 : x
2. Step 2: Convert to fraction form
   5,103.73/7,642.63 = 4,075.57/x
3. Step 3: Cross multiply
   5,103.73x = 7,642.63 × 4,075.57
4. Step 4: Simplify right side
   5,103.73x = 31,148,073.55
5. Step 5: Solve for x
   x = 31,148,073.55/5,103.73
6. Step 6: Final answer
   x = 6,103.00