Finding the Fourth Proportional to 7,320.80, 10,103.00 and 4,134.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,320.80 : 10,103.00 = 4,134.78 : x
2. Step 2: Convert to fraction form
   7,320.80/10,103.00 = 4,134.78/x
3. Step 3: Cross multiply
   7,320.80x = 10,103.00 × 4,134.78
4. Step 4: Simplify right side
   7,320.80x = 41,773,661.67
5. Step 5: Solve for x
   x = 41,773,661.67/7,320.80
6. Step 6: Final answer
   x = 5,706.16