Finding the Fourth Proportional to 4,961.34, 7,406.51 and 4,788.20

Step by Step Solution

1. Step 1: Write the proportion equation
   4,961.34 : 7,406.51 = 4,788.20 : x
2. Step 2: Convert to fraction form
   4,961.34/7,406.51 = 4,788.20/x
3. Step 3: Cross multiply
   4,961.34x = 7,406.51 × 4,788.20
4. Step 4: Simplify right side
   4,961.34x = 35,463,790.21
5. Step 5: Solve for x
   x = 35,463,790.21/4,961.34
6. Step 6: Final answer
   x = 7,148.03