Finding the Fourth Proportional to 14,480.63, 21,722.73 and 5,118.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,480.63 : 21,722.73 = 5,118.72 : x
2. Step 2: Convert to fraction form
   14,480.63/21,722.73 = 5,118.72/x
3. Step 3: Cross multiply
   14,480.63x = 21,722.73 × 5,118.72
4. Step 4: Simplify right side
   14,480.63x = 111,192,572.51
5. Step 5: Solve for x
   x = 111,192,572.51/14,480.63
6. Step 6: Final answer
   x = 7,678.71