Finding the Fourth Proportional to 8,977.37, 12,380.69 and 5,620.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,977.37 : 12,380.69 = 5,620.48 : x
2. Step 2: Convert to fraction form
   8,977.37/12,380.69 = 5,620.48/x
3. Step 3: Cross multiply
   8,977.37x = 12,380.69 × 5,620.48
4. Step 4: Simplify right side
   8,977.37x = 69,585,403.63
5. Step 5: Solve for x
   x = 69,585,403.63/8,977.37
6. Step 6: Final answer
   x = 7,751.21