Finding the Fourth Proportional to 23,529.84, 32,469.70 and 12,918.57

Step by Step Solution

1. Step 1: Write the proportion equation
   23,529.84 : 32,469.70 = 12,918.57 : x
2. Step 2: Convert to fraction form
   23,529.84/32,469.70 = 12,918.57/x
3. Step 3: Cross multiply
   23,529.84x = 32,469.70 × 12,918.57
4. Step 4: Simplify right side
   23,529.84x = 419,462,092.33
5. Step 5: Solve for x
   x = 419,462,092.33/23,529.84
6. Step 6: Final answer
   x = 17,826.81