Finding the Fourth Proportional to 5,685.77, 7,789.55 and 5,472.71

Step by Step Solution

1. Step 1: Write the proportion equation
   5,685.77 : 7,789.55 = 5,472.71 : x
2. Step 2: Convert to fraction form
   5,685.77/7,789.55 = 5,472.71/x
3. Step 3: Cross multiply
   5,685.77x = 7,789.55 × 5,472.71
4. Step 4: Simplify right side
   5,685.77x = 42,629,948.18
5. Step 5: Solve for x
   x = 42,629,948.18/5,685.77
6. Step 6: Final answer
   x = 7,497.66