Finding the Fourth Proportional to 8,762.58, 12,086.82 and 6,109.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,762.58 : 12,086.82 = 6,109.02 : x
2. Step 2: Convert to fraction form
   8,762.58/12,086.82 = 6,109.02/x
3. Step 3: Cross multiply
   8,762.58x = 12,086.82 × 6,109.02
4. Step 4: Simplify right side
   8,762.58x = 73,838,625.12
5. Step 5: Solve for x
   x = 73,838,625.12/8,762.58
6. Step 6: Final answer
   x = 8,426.58