Finding the Fourth Proportional to 70,965.37, 106,327.55 and 42,826.30

Step by Step Solution

1. Step 1: Write the proportion equation
   70,965.37 : 106,327.55 = 42,826.30 : x
2. Step 2: Convert to fraction form
   70,965.37/106,327.55 = 42,826.30/x
3. Step 3: Cross multiply
   70,965.37x = 106,327.55 × 42,826.30
4. Step 4: Simplify right side
   70,965.37x = 4,553,615,554.57
5. Step 5: Solve for x
   x = 4,553,615,554.57/70,965.37
6. Step 6: Final answer
   x = 64,166.73