Finding the Fourth Proportional to 10,103.60, 15,157.83 and 3,178.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,103.60 : 15,157.83 = 3,178.10 : x
2. Step 2: Convert to fraction form
   10,103.60/15,157.83 = 3,178.10/x
3. Step 3: Cross multiply
   10,103.60x = 15,157.83 × 3,178.10
4. Step 4: Simplify right side
   10,103.60x = 48,173,023.73
5. Step 5: Solve for x
   x = 48,173,023.73/10,103.60
6. Step 6: Final answer
   x = 4,767.91