Finding the Fourth Proportional to 5,448.70, 8,111.42 and 5,416.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,448.70 : 8,111.42 = 5,416.30 : x
2. Step 2: Convert to fraction form
   5,448.70/8,111.42 = 5,416.30/x
3. Step 3: Cross multiply
   5,448.70x = 8,111.42 × 5,416.30
4. Step 4: Simplify right side
   5,448.70x = 43,933,884.15
5. Step 5: Solve for x
   x = 43,933,884.15/5,448.70
6. Step 6: Final answer
   x = 8,063.19