Finding the Fourth Proportional to 8,763.57, 12,093.71 and 5,619.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,763.57 : 12,093.71 = 5,619.75 : x
2. Step 2: Convert to fraction form
   8,763.57/12,093.71 = 5,619.75/x
3. Step 3: Cross multiply
   8,763.57x = 12,093.71 × 5,619.75
4. Step 4: Simplify right side
   8,763.57x = 67,963,626.77
5. Step 5: Solve for x
   x = 67,963,626.77/8,763.57
6. Step 6: Final answer
   x = 7,755.24