Finding the Fourth Proportional to 14,450.64, 21,670.52 and 5,680.76

Step by Step Solution

1. Step 1: Write the proportion equation
   14,450.64 : 21,670.52 = 5,680.76 : x
2. Step 2: Convert to fraction form
   14,450.64/21,670.52 = 5,680.76/x
3. Step 3: Cross multiply
   14,450.64x = 21,670.52 × 5,680.76
4. Step 4: Simplify right side
   14,450.64x = 123,105,023.20
5. Step 5: Solve for x
   x = 123,105,023.20/14,450.64
6. Step 6: Final answer
   x = 8,519.00