Finding the Fourth Proportional to 13,027.67, 17,978.16 and 7,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,027.67 : 17,978.16 = 7,059.50 : x
2. Step 2: Convert to fraction form
   13,027.67/17,978.16 = 7,059.50/x
3. Step 3: Cross multiply
   13,027.67x = 17,978.16 × 7,059.50
4. Step 4: Simplify right side
   13,027.67x = 126,916,820.52
5. Step 5: Solve for x
   x = 126,916,820.52/13,027.67
6. Step 6: Final answer
   x = 9,742.10