Finding the Fourth Proportional to 7,498.76, 10,273.25 and 7,218.39

Step by Step Solution

1. Step 1: Write the proportion equation
   7,498.76 : 10,273.25 = 7,218.39 : x
2. Step 2: Convert to fraction form
   7,498.76/10,273.25 = 7,218.39/x
3. Step 3: Cross multiply
   7,498.76x = 10,273.25 × 7,218.39
4. Step 4: Simplify right side
   7,498.76x = 74,156,325.07
5. Step 5: Solve for x
   x = 74,156,325.07/7,498.76
6. Step 6: Final answer
   x = 9,889.15