Finding the Fourth Proportional to 67,679.98, 101,529.69 and 20,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,679.98 : 101,529.69 = 20,936.50 : x
2. Step 2: Convert to fraction form
   67,679.98/101,529.69 = 20,936.50/x
3. Step 3: Cross multiply
   67,679.98x = 101,529.69 × 20,936.50
4. Step 4: Simplify right side
   67,679.98x = 2,125,676,354.69
5. Step 5: Solve for x
   x = 2,125,676,354.69/67,679.98
6. Step 6: Final answer
   x = 31,407.76