Finding the Fourth Proportional to 8,761.15, 12,090.56 and 4,782.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,761.15 : 12,090.56 = 4,782.43 : x
2. Step 2: Convert to fraction form
   8,761.15/12,090.56 = 4,782.43/x
3. Step 3: Cross multiply
   8,761.15x = 12,090.56 × 4,782.43
4. Step 4: Simplify right side
   8,761.15x = 57,822,256.86
5. Step 5: Solve for x
   x = 57,822,256.86/8,761.15
6. Step 6: Final answer
   x = 6,599.85