Finding the Fourth Proportional to 12,618.35, 18,920.94 and 4,714.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,618.35 : 18,920.94 = 4,714.37 : x
2. Step 2: Convert to fraction form
   12,618.35/18,920.94 = 4,714.37/x
3. Step 3: Cross multiply
   12,618.35x = 18,920.94 × 4,714.37
4. Step 4: Simplify right side
   12,618.35x = 89,200,217.30
5. Step 5: Solve for x
   x = 89,200,217.30/12,618.35
6. Step 6: Final answer
   x = 7,069.09