Finding the Fourth Proportional to 14,662.15, 21,976.71 and 7,271.91

Step by Step Solution

1. Step 1: Write the proportion equation
   14,662.15 : 21,976.71 = 7,271.91 : x
2. Step 2: Convert to fraction form
   14,662.15/21,976.71 = 7,271.91/x
3. Step 3: Cross multiply
   14,662.15x = 21,976.71 × 7,271.91
4. Step 4: Simplify right side
   14,662.15x = 159,812,657.22
5. Step 5: Solve for x
   x = 159,812,657.22/14,662.15
6. Step 6: Final answer
   x = 10,899.67