Finding the Fourth Proportional to 10,076.02, 15,120.11 and 7,178.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,076.02 : 15,120.11 = 7,178.42 : x
2. Step 2: Convert to fraction form
   10,076.02/15,120.11 = 7,178.42/x
3. Step 3: Cross multiply
   10,076.02x = 15,120.11 × 7,178.42
4. Step 4: Simplify right side
   10,076.02x = 108,538,500.03
5. Step 5: Solve for x
   x = 108,538,500.03/10,076.02
6. Step 6: Final answer
   x = 10,771.96