Finding the Fourth Proportional to 13,027.62, 17,978.06 and 7,059.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,027.62 : 17,978.06 = 7,059.31 : x
2. Step 2: Convert to fraction form
   13,027.62/17,978.06 = 7,059.31/x
3. Step 3: Cross multiply
   13,027.62x = 17,978.06 × 7,059.31
4. Step 4: Simplify right side
   13,027.62x = 126,912,698.74
5. Step 5: Solve for x
   x = 126,912,698.74/13,027.62
6. Step 6: Final answer
   x = 9,741.82