Finding the Fourth Proportional to 12,902.82, 19,340.52 and 8,208.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,902.82 : 19,340.52 = 8,208.06 : x
2. Step 2: Convert to fraction form
   12,902.82/19,340.52 = 8,208.06/x
3. Step 3: Cross multiply
   12,902.82x = 19,340.52 × 8,208.06
4. Step 4: Simplify right side
   12,902.82x = 158,748,148.59
5. Step 5: Solve for x
   x = 158,748,148.59/12,902.82
6. Step 6: Final answer
   x = 12,303.37