Finding the Fourth Proportional to 5,443.31, 7,511.85 and 4,078.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.31 : 7,511.85 = 4,078.16 : x
2. Step 2: Convert to fraction form
   5,443.31/7,511.85 = 4,078.16/x
3. Step 3: Cross multiply
   5,443.31x = 7,511.85 × 4,078.16
4. Step 4: Simplify right side
   5,443.31x = 30,634,505.81
5. Step 5: Solve for x
   x = 30,634,505.81/5,443.31
6. Step 6: Final answer
   x = 5,627.92