Finding the Fourth Proportional to 70,474.36, 105,695.35 and 42,019.36

Step by Step Solution

1. Step 1: Write the proportion equation
   70,474.36 : 105,695.35 = 42,019.36 : x
2. Step 2: Convert to fraction form
   70,474.36/105,695.35 = 42,019.36/x
3. Step 3: Cross multiply
   70,474.36x = 105,695.35 × 42,019.36
4. Step 4: Simplify right side
   70,474.36x = 4,441,250,433.50
5. Step 5: Solve for x
   x = 4,441,250,433.50/70,474.36
6. Step 6: Final answer
   x = 63,019.38