Finding the Fourth Proportional to 67,588.17, 101,375.78 and 20,828.49

Step by Step Solution

1. Step 1: Write the proportion equation
   67,588.17 : 101,375.78 = 20,828.49 : x
2. Step 2: Convert to fraction form
   67,588.17/101,375.78 = 20,828.49/x
3. Step 3: Cross multiply
   67,588.17x = 101,375.78 × 20,828.49
4. Step 4: Simplify right side
   67,588.17x = 2,111,504,315.83
5. Step 5: Solve for x
   x = 2,111,504,315.83/67,588.17
6. Step 6: Final answer
   x = 31,240.74