Finding the Fourth Proportional to 67,678.49, 101,531.86 and 20,291.67

Step by Step Solution

1. Step 1: Write the proportion equation
   67,678.49 : 101,531.86 = 20,291.67 : x
2. Step 2: Convert to fraction form
   67,678.49/101,531.86 = 20,291.67/x
3. Step 3: Cross multiply
   67,678.49x = 101,531.86 × 20,291.67
4. Step 4: Simplify right side
   67,678.49x = 2,060,250,946.88
5. Step 5: Solve for x
   x = 2,060,250,946.88/67,678.49
6. Step 6: Final answer
   x = 30,441.74