Finding the Fourth Proportional to 12,643.25, 17,444.72 and 7,337.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,643.25 : 17,444.72 = 7,337.12 : x
2. Step 2: Convert to fraction form
   12,643.25/17,444.72 = 7,337.12/x
3. Step 3: Cross multiply
   12,643.25x = 17,444.72 × 7,337.12
4. Step 4: Simplify right side
   12,643.25x = 127,993,935.13
5. Step 5: Solve for x
   x = 127,993,935.13/12,643.25
6. Step 6: Final answer
   x = 10,123.50