Finding the Fourth Proportional to 12,496.56, 17,245.35 and 7,191.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,496.56 : 17,245.35 = 7,191.06 : x
2. Step 2: Convert to fraction form
   12,496.56/17,245.35 = 7,191.06/x
3. Step 3: Cross multiply
   12,496.56x = 17,245.35 × 7,191.06
4. Step 4: Simplify right side
   12,496.56x = 124,012,346.57
5. Step 5: Solve for x
   x = 124,012,346.57/12,496.56
6. Step 6: Final answer
   x = 9,923.72