Finding the Fourth Proportional to 7,499.22, 10,273.83 and 7,218.81

Step by Step Solution

1. Step 1: Write the proportion equation
   7,499.22 : 10,273.83 = 7,218.81 : x
2. Step 2: Convert to fraction form
   7,499.22/10,273.83 = 7,218.81/x
3. Step 3: Cross multiply
   7,499.22x = 10,273.83 × 7,218.81
4. Step 4: Simplify right side
   7,499.22x = 74,164,826.74
5. Step 5: Solve for x
   x = 74,164,826.74/7,499.22
6. Step 6: Final answer
   x = 9,889.67