Finding the Fourth Proportional to 4,836.45, 7,196.76 and 4,820.05

Step by Step Solution

1. Step 1: Write the proportion equation
   4,836.45 : 7,196.76 = 4,820.05 : x
2. Step 2: Convert to fraction form
   4,836.45/7,196.76 = 4,820.05/x
3. Step 3: Cross multiply
   4,836.45x = 7,196.76 × 4,820.05
4. Step 4: Simplify right side
   4,836.45x = 34,688,752.03
5. Step 5: Solve for x
   x = 34,688,752.03/4,836.45
6. Step 6: Final answer
   x = 7,172.35