Finding the Fourth Proportional to 5,561.16, 8,333.42 and 5,151.09

Step by Step Solution

1. Step 1: Write the proportion equation
   5,561.16 : 8,333.42 = 5,151.09 : x
2. Step 2: Convert to fraction form
   5,561.16/8,333.42 = 5,151.09/x
3. Step 3: Cross multiply
   5,561.16x = 8,333.42 × 5,151.09
4. Step 4: Simplify right side
   5,561.16x = 42,926,196.43
5. Step 5: Solve for x
   x = 42,926,196.43/5,561.16
6. Step 6: Final answer
   x = 7,718.93