Finding the Fourth Proportional to 12,359.89, 17,057.08 and 7,054.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,359.89 : 17,057.08 = 7,054.59 : x
2. Step 2: Convert to fraction form
   12,359.89/17,057.08 = 7,054.59/x
3. Step 3: Cross multiply
   12,359.89x = 17,057.08 × 7,054.59
4. Step 4: Simplify right side
   12,359.89x = 120,330,778.78
5. Step 5: Solve for x
   x = 120,330,778.78/12,359.89
6. Step 6: Final answer
   x = 9,735.59