Finding the Fourth Proportional to 4,985.37, 7,419.21 and 4,819.27

Step by Step Solution

1. Step 1: Write the proportion equation
   4,985.37 : 7,419.21 = 4,819.27 : x
2. Step 2: Convert to fraction form
   4,985.37/7,419.21 = 4,819.27/x
3. Step 3: Cross multiply
   4,985.37x = 7,419.21 × 4,819.27
4. Step 4: Simplify right side
   4,985.37x = 35,755,176.18
5. Step 5: Solve for x
   x = 35,755,176.18/4,985.37
6. Step 6: Final answer
   x = 7,172.02