Finding the Fourth Proportional to 10,453.60, 15,680.42 and 3,878.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,453.60 : 15,680.42 = 3,878.02 : x
2. Step 2: Convert to fraction form
   10,453.60/15,680.42 = 3,878.02/x
3. Step 3: Cross multiply
   10,453.60x = 15,680.42 × 3,878.02
4. Step 4: Simplify right side
   10,453.60x = 60,808,982.37
5. Step 5: Solve for x
   x = 60,808,982.37/10,453.60
6. Step 6: Final answer
   x = 5,817.04