Finding the Fourth Proportional to 7,866.72, 10,859.48 and 5,624.70

Step by Step Solution

1. Step 1: Write the proportion equation
   7,866.72 : 10,859.48 = 5,624.70 : x
2. Step 2: Convert to fraction form
   7,866.72/10,859.48 = 5,624.70/x
3. Step 3: Cross multiply
   7,866.72x = 10,859.48 × 5,624.70
4. Step 4: Simplify right side
   7,866.72x = 61,081,289.03
5. Step 5: Solve for x
   x = 61,081,289.03/7,866.72
6. Step 6: Final answer
   x = 7,764.52