Finding the Fourth Proportional to 7,789.77, 10,750.32 and 4,253.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,789.77 : 10,750.32 = 4,253.31 : x
2. Step 2: Convert to fraction form
   7,789.77/10,750.32 = 4,253.31/x
3. Step 3: Cross multiply
   7,789.77x = 10,750.32 × 4,253.31
4. Step 4: Simplify right side
   7,789.77x = 45,724,443.56
5. Step 5: Solve for x
   x = 45,724,443.56/7,789.77
6. Step 6: Final answer
   x = 5,869.81