Finding the Fourth Proportional to 12,960.02, 17,885.41 and 7,654.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,960.02 : 17,885.41 = 7,654.86 : x
2. Step 2: Convert to fraction form
   12,960.02/17,885.41 = 7,654.86/x
3. Step 3: Cross multiply
   12,960.02x = 17,885.41 × 7,654.86
4. Step 4: Simplify right side
   12,960.02x = 136,910,290.46
5. Step 5: Solve for x
   x = 136,910,290.46/12,960.02
6. Step 6: Final answer
   x = 10,564.05