Finding the Fourth Proportional to 8,498.80, 12,734.34 and 5,204.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,498.80 : 12,734.34 = 5,204.98 : x
2. Step 2: Convert to fraction form
   8,498.80/12,734.34 = 5,204.98/x
3. Step 3: Cross multiply
   8,498.80x = 12,734.34 × 5,204.98
4. Step 4: Simplify right side
   8,498.80x = 66,281,985.01
5. Step 5: Solve for x
   x = 66,281,985.01/8,498.80
6. Step 6: Final answer
   x = 7,798.98