Finding the Fourth Proportional to 70,674.54, 105,995.61 and 42,219.51

Step by Step Solution

1. Step 1: Write the proportion equation
   70,674.54 : 105,995.61 = 42,219.51 : x
2. Step 2: Convert to fraction form
   70,674.54/105,995.61 = 42,219.51/x
3. Step 3: Cross multiply
   70,674.54x = 105,995.61 × 42,219.51
4. Step 4: Simplify right side
   70,674.54x = 4,475,082,716.35
5. Step 5: Solve for x
   x = 4,475,082,716.35/70,674.54
6. Step 6: Final answer
   x = 63,319.59