Finding the Fourth Proportional to 70,181.82, 105,241.46 and 20,250.05

Step by Step Solution

1. Step 1: Write the proportion equation
   70,181.82 : 105,241.46 = 20,250.05 : x
2. Step 2: Convert to fraction form
   70,181.82/105,241.46 = 20,250.05/x
3. Step 3: Cross multiply
   70,181.82x = 105,241.46 × 20,250.05
4. Step 4: Simplify right side
   70,181.82x = 2,131,144,827.07
5. Step 5: Solve for x
   x = 2,131,144,827.07/70,181.82
6. Step 6: Final answer
   x = 30,366.05