Finding the Fourth Proportional to 10,242.76, 15,363.60 and 3,316.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,242.76 : 15,363.60 = 3,316.72 : x
2. Step 2: Convert to fraction form
   10,242.76/15,363.60 = 3,316.72/x
3. Step 3: Cross multiply
   10,242.76x = 15,363.60 × 3,316.72
4. Step 4: Simplify right side
   10,242.76x = 50,956,759.39
5. Step 5: Solve for x
   x = 50,956,759.39/10,242.76
6. Step 6: Final answer
   x = 4,974.91