Finding the Fourth Proportional to 9,477.40, 14,224.56 and 9,442.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,477.40 : 14,224.56 = 9,442.12 : x
2. Step 2: Convert to fraction form
   9,477.40/14,224.56 = 9,442.12/x
3. Step 3: Cross multiply
   9,477.40x = 14,224.56 × 9,442.12
4. Step 4: Simplify right side
   9,477.40x = 134,310,002.47
5. Step 5: Solve for x
   x = 134,310,002.47/9,477.40
6. Step 6: Final answer
   x = 14,171.61