Finding the Fourth Proportional to 4,803.42, 7,191.18 and 4,303.20

Step by Step Solution

1. Step 1: Write the proportion equation
   4,803.42 : 7,191.18 = 4,303.20 : x
2. Step 2: Convert to fraction form
   4,803.42/7,191.18 = 4,303.20/x
3. Step 3: Cross multiply
   4,803.42x = 7,191.18 × 4,303.20
4. Step 4: Simplify right side
   4,803.42x = 30,945,085.78
5. Step 5: Solve for x
   x = 30,945,085.78/4,803.42
6. Step 6: Final answer
   x = 6,442.30