Finding the Fourth Proportional to 8,498.84, 12,756.37 and 5,218.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,498.84 : 12,756.37 = 5,218.34 : x
2. Step 2: Convert to fraction form
   8,498.84/12,756.37 = 5,218.34/x
3. Step 3: Cross multiply
   8,498.84x = 12,756.37 × 5,218.34
4. Step 4: Simplify right side
   8,498.84x = 66,567,075.83
5. Step 5: Solve for x
   x = 66,567,075.83/8,498.84
6. Step 6: Final answer
   x = 7,832.49