Finding the Fourth Proportional to 12,935.89, 17,845.68 and 7,628.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,935.89 : 17,845.68 = 7,628.23 : x
2. Step 2: Convert to fraction form
   12,935.89/17,845.68 = 7,628.23/x
3. Step 3: Cross multiply
   12,935.89x = 17,845.68 × 7,628.23
4. Step 4: Simplify right side
   12,935.89x = 136,130,951.55
5. Step 5: Solve for x
   x = 136,130,951.55/12,935.89
6. Step 6: Final answer
   x = 10,523.51