Finding the Fourth Proportional to 12,639.30, 17,437.35 and 7,333.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,639.30 : 17,437.35 = 7,333.14 : x
2. Step 2: Convert to fraction form
   12,639.30/17,437.35 = 7,333.14/x
3. Step 3: Cross multiply
   12,639.30x = 17,437.35 × 7,333.14
4. Step 4: Simplify right side
   12,639.30x = 127,870,528.78
5. Step 5: Solve for x
   x = 127,870,528.78/12,639.30
6. Step 6: Final answer
   x = 10,116.90