Finding the Fourth Proportional to 7,755.30, 10,702.50 and 4,218.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,755.30 : 10,702.50 = 4,218.69 : x
2. Step 2: Convert to fraction form
   7,755.30/10,702.50 = 4,218.69/x
3. Step 3: Cross multiply
   7,755.30x = 10,702.50 × 4,218.69
4. Step 4: Simplify right side
   7,755.30x = 45,150,529.73
5. Step 5: Solve for x
   x = 45,150,529.73/7,755.30
6. Step 6: Final answer
   x = 5,821.89