Finding the Fourth Proportional to 13,124.72, 18,112.46 and 7,459.17

Step by Step Solution

1. Step 1: Write the proportion equation
   13,124.72 : 18,112.46 = 7,459.17 : x
2. Step 2: Convert to fraction form
   13,124.72/18,112.46 = 7,459.17/x
3. Step 3: Cross multiply
   13,124.72x = 18,112.46 × 7,459.17
4. Step 4: Simplify right side
   13,124.72x = 135,103,880.96
5. Step 5: Solve for x
   x = 135,103,880.96/13,124.72
6. Step 6: Final answer
   x = 10,293.85