Finding the Fourth Proportional to 12,998.76, 17,938.28 and 7,333.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,998.76 : 17,938.28 = 7,333.50 : x
2. Step 2: Convert to fraction form
   12,998.76/17,938.28 = 7,333.50/x
3. Step 3: Cross multiply
   12,998.76x = 17,938.28 × 7,333.50
4. Step 4: Simplify right side
   12,998.76x = 131,550,339.71
5. Step 5: Solve for x
   x = 131,550,339.71/12,998.76
6. Step 6: Final answer
   x = 10,120.22