Finding the Fourth Proportional to 12,415.50, 18,626.76 and 5,018.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,415.50 : 18,626.76 = 5,018.34 : x
2. Step 2: Convert to fraction form
   12,415.50/18,626.76 = 5,018.34/x
3. Step 3: Cross multiply
   12,415.50x = 18,626.76 × 5,018.34
4. Step 4: Simplify right side
   12,415.50x = 93,475,414.78
5. Step 5: Solve for x
   x = 93,475,414.78/12,415.50
6. Step 6: Final answer
   x = 7,528.93