Finding the Fourth Proportional to 5,561.82, 7,708.55 and 5,458.14

Step by Step Solution

1. Step 1: Write the proportion equation
   5,561.82 : 7,708.55 = 5,458.14 : x
2. Step 2: Convert to fraction form
   5,561.82/7,708.55 = 5,458.14/x
3. Step 3: Cross multiply
   5,561.82x = 7,708.55 × 5,458.14
4. Step 4: Simplify right side
   5,561.82x = 42,074,317.81
5. Step 5: Solve for x
   x = 42,074,317.81/5,561.82
6. Step 6: Final answer
   x = 7,564.85