Finding the Fourth Proportional to 23,139.84, 31,933.00 and 12,529.49

Step by Step Solution

1. Step 1: Write the proportion equation
   23,139.84 : 31,933.00 = 12,529.49 : x
2. Step 2: Convert to fraction form
   23,139.84/31,933.00 = 12,529.49/x
3. Step 3: Cross multiply
   23,139.84x = 31,933.00 × 12,529.49
4. Step 4: Simplify right side
   23,139.84x = 400,104,060.17
5. Step 5: Solve for x
   x = 400,104,060.17/23,139.84
6. Step 6: Final answer
   x = 17,290.70