Finding the Fourth Proportional to 67,689.76, 101,459.12 and 28,233.76

Step by Step Solution

1. Step 1: Write the proportion equation
   67,689.76 : 101,459.12 = 28,233.76 : x
2. Step 2: Convert to fraction form
   67,689.76/101,459.12 = 28,233.76/x
3. Step 3: Cross multiply
   67,689.76x = 101,459.12 × 28,233.76
4. Step 4: Simplify right side
   67,689.76x = 2,864,572,443.89
5. Step 5: Solve for x
   x = 2,864,572,443.89/67,689.76
6. Step 6: Final answer
   x = 42,319.14