Finding the Fourth Proportional to 10,480.56, 15,722.72 and 4,637.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,480.56 : 15,722.72 = 4,637.20 : x
2. Step 2: Convert to fraction form
   10,480.56/15,722.72 = 4,637.20/x
3. Step 3: Cross multiply
   10,480.56x = 15,722.72 × 4,637.20
4. Step 4: Simplify right side
   10,480.56x = 72,909,397.18
5. Step 5: Solve for x
   x = 72,909,397.18/10,480.56
6. Step 6: Final answer
   x = 6,956.63