Finding the Fourth Proportional to 14,651.62, 21,976.72 and 4,789.60

Step by Step Solution

1. Step 1: Write the proportion equation
   14,651.62 : 21,976.72 = 4,789.60 : x
2. Step 2: Convert to fraction form
   14,651.62/21,976.72 = 4,789.60/x
3. Step 3: Cross multiply
   14,651.62x = 21,976.72 × 4,789.60
4. Step 4: Simplify right side
   14,651.62x = 105,259,631.20
5. Step 5: Solve for x
   x = 105,259,631.20/14,651.62
6. Step 6: Final answer
   x = 7,184.16