Finding the Fourth Proportional to 13,037.72, 17,991.99 and 7,069.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,037.72 : 17,991.99 = 7,069.37 : x
2. Step 2: Convert to fraction form
   13,037.72/17,991.99 = 7,069.37/x
3. Step 3: Cross multiply
   13,037.72x = 17,991.99 × 7,069.37
4. Step 4: Simplify right side
   13,037.72x = 127,191,944.39
5. Step 5: Solve for x
   x = 127,191,944.39/13,037.72
6. Step 6: Final answer
   x = 9,755.69