Finding the Fourth Proportional to 67,819.21, 101,714.20 and 42,825.87

Step by Step Solution

1. Step 1: Write the proportion equation
   67,819.21 : 101,714.20 = 42,825.87 : x
2. Step 2: Convert to fraction form
   67,819.21/101,714.20 = 42,825.87/x
3. Step 3: Cross multiply
   67,819.21x = 101,714.20 × 42,825.87
4. Step 4: Simplify right side
   67,819.21x = 4,355,998,999.29
5. Step 5: Solve for x
   x = 4,355,998,999.29/67,819.21
6. Step 6: Final answer
   x = 64,229.58