Finding the Fourth Proportional to 9,662.54, 14,498.39 and 5,279.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,662.54 : 14,498.39 = 5,279.87 : x
2. Step 2: Convert to fraction form
   9,662.54/14,498.39 = 5,279.87/x
3. Step 3: Cross multiply
   9,662.54x = 14,498.39 × 5,279.87
4. Step 4: Simplify right side
   9,662.54x = 76,549,515.52
5. Step 5: Solve for x
   x = 76,549,515.52/9,662.54
6. Step 6: Final answer
   x = 7,922.30