Finding the Fourth Proportional to 12,362.72, 17,055.60 and 7,885.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,362.72 : 17,055.60 = 7,885.64 : x
2. Step 2: Convert to fraction form
   12,362.72/17,055.60 = 7,885.64/x
3. Step 3: Cross multiply
   12,362.72x = 17,055.60 × 7,885.64
4. Step 4: Simplify right side
   12,362.72x = 134,494,321.58
5. Step 5: Solve for x
   x = 134,494,321.58/12,362.72
6. Step 6: Final answer
   x = 10,879.02