Finding the Fourth Proportional to 4,830.58, 7,188.17 and 4,814.20

Step by Step Solution

1. Step 1: Write the proportion equation
   4,830.58 : 7,188.17 = 4,814.20 : x
2. Step 2: Convert to fraction form
   4,830.58/7,188.17 = 4,814.20/x
3. Step 3: Cross multiply
   4,830.58x = 7,188.17 × 4,814.20
4. Step 4: Simplify right side
   4,830.58x = 34,605,288.01
5. Step 5: Solve for x
   x = 34,605,288.01/4,830.58
6. Step 6: Final answer
   x = 7,163.80