Finding the Fourth Proportional to 10,019.42, 15,105.20 and 9,483.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,019.42 : 15,105.20 = 9,483.60 : x
2. Step 2: Convert to fraction form
   10,019.42/15,105.20 = 9,483.60/x
3. Step 3: Cross multiply
   10,019.42x = 15,105.20 × 9,483.60
4. Step 4: Simplify right side
   10,019.42x = 143,251,627.30
5. Step 5: Solve for x
   x = 143,251,627.30/10,019.42
6. Step 6: Final answer
   x = 14,297.40