Finding the Fourth Proportional to 12,737.30, 17,577.54 and 7,960.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,737.30 : 17,577.54 = 7,960.02 : x
2. Step 2: Convert to fraction form
   12,737.30/17,577.54 = 7,960.02/x
3. Step 3: Cross multiply
   12,737.30x = 17,577.54 × 7,960.02
4. Step 4: Simplify right side
   12,737.30x = 139,917,530.15
5. Step 5: Solve for x
   x = 139,917,530.15/12,737.30
6. Step 6: Final answer
   x = 10,984.87