Finding the Fourth Proportional to 8,761.58, 12,090.89 and 4,782.65

Step by Step Solution

1. Step 1: Write the proportion equation
   8,761.58 : 12,090.89 = 4,782.65 : x
2. Step 2: Convert to fraction form
   8,761.58/12,090.89 = 4,782.65/x
3. Step 3: Cross multiply
   8,761.58x = 12,090.89 × 4,782.65
4. Step 4: Simplify right side
   8,761.58x = 57,826,410.69
5. Step 5: Solve for x
   x = 57,826,410.69/8,761.58
6. Step 6: Final answer
   x = 6,600.00