Finding the Fourth Proportional to 12,473.03, 17,212.82 and 7,439.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,473.03 : 17,212.82 = 7,439.51 : x
2. Step 2: Convert to fraction form
   12,473.03/17,212.82 = 7,439.51/x
3. Step 3: Cross multiply
   12,473.03x = 17,212.82 × 7,439.51
4. Step 4: Simplify right side
   12,473.03x = 128,054,903.49
5. Step 5: Solve for x
   x = 128,054,903.49/12,473.03
6. Step 6: Final answer
   x = 10,266.55