Finding the Fourth Proportional to 5,604.63, 8,410.50 and 5,078.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,604.63 : 8,410.50 = 5,078.61 : x
2. Step 2: Convert to fraction form
   5,604.63/8,410.50 = 5,078.61/x
3. Step 3: Cross multiply
   5,604.63x = 8,410.50 × 5,078.61
4. Step 4: Simplify right side
   5,604.63x = 42,713,649.41
5. Step 5: Solve for x
   x = 42,713,649.41/5,604.63
6. Step 6: Final answer
   x = 7,621.14