Finding the Fourth Proportional to 8,760.83, 12,090.23 and 4,782.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,760.83 : 12,090.23 = 4,782.15 : x
2. Step 2: Convert to fraction form
   8,760.83/12,090.23 = 4,782.15/x
3. Step 3: Cross multiply
   8,760.83x = 12,090.23 × 4,782.15
4. Step 4: Simplify right side
   8,760.83x = 57,817,269.48
5. Step 5: Solve for x
   x = 57,817,269.48/8,760.83
6. Step 6: Final answer
   x = 6,599.52