Finding the Fourth Proportional to 4,784.72, 7,205.20 and 4,175.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,784.72 : 7,205.20 = 4,175.72 : x
2. Step 2: Convert to fraction form
   4,784.72/7,205.20 = 4,175.72/x
3. Step 3: Cross multiply
   4,784.72x = 7,205.20 × 4,175.72
4. Step 4: Simplify right side
   4,784.72x = 30,086,897.74
5. Step 5: Solve for x
   x = 30,086,897.74/4,784.72
6. Step 6: Final answer
   x = 6,288.12