Finding the Fourth Proportional to 9,219.69, 12,727.51 and 7,206.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,219.69 : 12,727.51 = 7,206.03 : x
2. Step 2: Convert to fraction form
   9,219.69/12,727.51 = 7,206.03/x
3. Step 3: Cross multiply
   9,219.69x = 12,727.51 × 7,206.03
4. Step 4: Simplify right side
   9,219.69x = 91,714,818.89
5. Step 5: Solve for x
   x = 91,714,818.89/9,219.69
6. Step 6: Final answer
   x = 9,947.71