Finding the Fourth Proportional to 12,911.84, 17,821.06 and 7,608.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,911.84 : 17,821.06 = 7,608.50 : x
2. Step 2: Convert to fraction form
   12,911.84/17,821.06 = 7,608.50/x
3. Step 3: Cross multiply
   12,911.84x = 17,821.06 × 7,608.50
4. Step 4: Simplify right side
   12,911.84x = 135,591,535.01
5. Step 5: Solve for x
   x = 135,591,535.01/12,911.84
6. Step 6: Final answer
   x = 10,501.33