Finding the Fourth Proportional to 12,374.69, 18,540.16 and 8,204.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,374.69 : 18,540.16 = 8,204.81 : x
2. Step 2: Convert to fraction form
   12,374.69/18,540.16 = 8,204.81/x
3. Step 3: Cross multiply
   12,374.69x = 18,540.16 × 8,204.81
4. Step 4: Simplify right side
   12,374.69x = 152,118,490.17
5. Step 5: Solve for x
   x = 152,118,490.17/12,374.69
6. Step 6: Final answer
   x = 12,292.71