Finding the Fourth Proportional to 12,998.50, 17,937.94 and 7,334.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,998.50 : 17,937.94 = 7,334.45 : x
2. Step 2: Convert to fraction form
   12,998.50/17,937.94 = 7,334.45/x
3. Step 3: Cross multiply
   12,998.50x = 17,937.94 × 7,334.45
4. Step 4: Simplify right side
   12,998.50x = 131,564,928.12
5. Step 5: Solve for x
   x = 131,564,928.12/12,998.50
6. Step 6: Final answer
   x = 10,121.55