Finding the Fourth Proportional to 8,761.50, 12,091.98 and 5,783.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,761.50 : 12,091.98 = 5,783.54 : x
2. Step 2: Convert to fraction form
   8,761.50/12,091.98 = 5,783.54/x
3. Step 3: Cross multiply
   8,761.50x = 12,091.98 × 5,783.54
4. Step 4: Simplify right side
   8,761.50x = 69,934,411.24
5. Step 5: Solve for x
   x = 69,934,411.24/8,761.50
6. Step 6: Final answer
   x = 7,982.01