Finding the Fourth Proportional to 5,705.76, 8,569.98 and 3,518.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,705.76 : 8,569.98 = 3,518.76 : x
2. Step 2: Convert to fraction form
   5,705.76/8,569.98 = 3,518.76/x
3. Step 3: Cross multiply
   5,705.76x = 8,569.98 × 3,518.76
4. Step 4: Simplify right side
   5,705.76x = 30,155,702.82
5. Step 5: Solve for x
   x = 30,155,702.82/5,705.76
6. Step 6: Final answer
   x = 5,285.13