Finding the Fourth Proportional to 7,494.59, 11,222.72 and 7,272.87

Step by Step Solution

1. Step 1: Write the proportion equation
   7,494.59 : 11,222.72 = 7,272.87 : x
2. Step 2: Convert to fraction form
   7,494.59/11,222.72 = 7,272.87/x
3. Step 3: Cross multiply
   7,494.59x = 11,222.72 × 7,272.87
4. Step 4: Simplify right side
   7,494.59x = 81,621,383.61
5. Step 5: Solve for x
   x = 81,621,383.61/7,494.59
6. Step 6: Final answer
   x = 10,890.71