Finding the Fourth Proportional to 67,733.34, 101,607.21 and 20,989.86

Step by Step Solution

1. Step 1: Write the proportion equation
   67,733.34 : 101,607.21 = 20,989.86 : x
2. Step 2: Convert to fraction form
   67,733.34/101,607.21 = 20,989.86/x
3. Step 3: Cross multiply
   67,733.34x = 101,607.21 × 20,989.86
4. Step 4: Simplify right side
   67,733.34x = 2,132,721,112.89
5. Step 5: Solve for x
   x = 2,132,721,112.89/67,733.34
6. Step 6: Final answer
   x = 31,487.02