Finding the Fourth Proportional to 70,204.62, 105,317.88 and 42,118.08

Step by Step Solution

1. Step 1: Write the proportion equation
   70,204.62 : 105,317.88 = 42,118.08 : x
2. Step 2: Convert to fraction form
   70,204.62/105,317.88 = 42,118.08/x
3. Step 3: Cross multiply
   70,204.62x = 105,317.88 × 42,118.08
4. Step 4: Simplify right side
   70,204.62x = 4,435,786,895.27
5. Step 5: Solve for x
   x = 4,435,786,895.27/70,204.62
6. Step 6: Final answer
   x = 63,183.69