Finding the Fourth Proportional to 12,936.93, 17,852.81 and 7,347.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,936.93 : 17,852.81 = 7,347.57 : x
2. Step 2: Convert to fraction form
   12,936.93/17,852.81 = 7,347.57/x
3. Step 3: Cross multiply
   12,936.93x = 17,852.81 × 7,347.57
4. Step 4: Simplify right side
   12,936.93x = 131,174,734.43
5. Step 5: Solve for x
   x = 131,174,734.43/12,936.93
6. Step 6: Final answer
   x = 10,139.56