Finding the Fourth Proportional to 8,762.16, 12,091.61 and 4,783.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,762.16 : 12,091.61 = 4,783.30 : x
2. Step 2: Convert to fraction form
   8,762.16/12,091.61 = 4,783.30/x
3. Step 3: Cross multiply
   8,762.16x = 12,091.61 × 4,783.30
4. Step 4: Simplify right side
   8,762.16x = 57,837,761.90
5. Step 5: Solve for x
   x = 57,837,761.90/8,762.16
6. Step 6: Final answer
   x = 6,600.86