Finding the Fourth Proportional to 12,359.07, 17,058.59 and 7,057.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,359.07 : 17,058.59 = 7,057.01 : x
2. Step 2: Convert to fraction form
   12,359.07/17,058.59 = 7,057.01/x
3. Step 3: Cross multiply
   12,359.07x = 17,058.59 × 7,057.01
4. Step 4: Simplify right side
   12,359.07x = 120,382,519.64
5. Step 5: Solve for x
   x = 120,382,519.64/12,359.07
6. Step 6: Final answer
   x = 9,740.42