Finding the Fourth Proportional to 8,530.39, 12,796.78 and 2,982.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,530.39 : 12,796.78 = 2,982.47 : x
2. Step 2: Convert to fraction form
   8,530.39/12,796.78 = 2,982.47/x
3. Step 3: Cross multiply
   8,530.39x = 12,796.78 × 2,982.47
4. Step 4: Simplify right side
   8,530.39x = 38,166,048.17
5. Step 5: Solve for x
   x = 38,166,048.17/8,530.39
6. Step 6: Final answer
   x = 4,474.13