Finding the Fourth Proportional to 10,300.37, 15,445.03 and 3,278.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,300.37 : 15,445.03 = 3,278.48 : x
2. Step 2: Convert to fraction form
   10,300.37/15,445.03 = 3,278.48/x
3. Step 3: Cross multiply
   10,300.37x = 15,445.03 × 3,278.48
4. Step 4: Simplify right side
   10,300.37x = 50,636,142.68
5. Step 5: Solve for x
   x = 50,636,142.68/10,300.37
6. Step 6: Final answer
   x = 4,915.96