Finding the Fourth Proportional to 5,435.91, 7,501.41 and 3,078.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,435.91 : 7,501.41 = 3,078.81 : x
2. Step 2: Convert to fraction form
   5,435.91/7,501.41 = 3,078.81/x
3. Step 3: Cross multiply
   5,435.91x = 7,501.41 × 3,078.81
4. Step 4: Simplify right side
   5,435.91x = 23,095,416.12
5. Step 5: Solve for x
   x = 23,095,416.12/5,435.91
6. Step 6: Final answer
   x = 4,248.68