Finding the Fourth Proportional to 13,000.50, 17,940.70 and 7,336.45

Step by Step Solution

1. Step 1: Write the proportion equation
   13,000.50 : 17,940.70 = 7,336.45 : x
2. Step 2: Convert to fraction form
   13,000.50/17,940.70 = 7,336.45/x
3. Step 3: Cross multiply
   13,000.50x = 17,940.70 × 7,336.45
4. Step 4: Simplify right side
   13,000.50x = 131,621,048.52
5. Step 5: Solve for x
   x = 131,621,048.52/13,000.50
6. Step 6: Final answer
   x = 10,124.31