Finding the Fourth Proportional to 12,250.82, 18,376.83 and 3,486.35

Step by Step Solution

1. Step 1: Write the proportion equation
   12,250.82 : 18,376.83 = 3,486.35 : x
2. Step 2: Convert to fraction form
   12,250.82/18,376.83 = 3,486.35/x
3. Step 3: Cross multiply
   12,250.82x = 18,376.83 × 3,486.35
4. Step 4: Simplify right side
   12,250.82x = 64,068,061.27
5. Step 5: Solve for x
   x = 64,068,061.27/12,250.82
6. Step 6: Final answer
   x = 5,229.70