Finding the Fourth Proportional to 7,279.41, 10,043.86 and 5,286.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,279.41 : 10,043.86 = 5,286.50 : x
2. Step 2: Convert to fraction form
   7,279.41/10,043.86 = 5,286.50/x
3. Step 3: Cross multiply
   7,279.41x = 10,043.86 × 5,286.50
4. Step 4: Simplify right side
   7,279.41x = 53,096,865.89
5. Step 5: Solve for x
   x = 53,096,865.89/7,279.41
6. Step 6: Final answer
   x = 7,294.12