Finding the Fourth Proportional to 70,113.27, 105,229.59 and 28,022.88

Step by Step Solution

1. Step 1: Write the proportion equation
   70,113.27 : 105,229.59 = 28,022.88 : x
2. Step 2: Convert to fraction form
   70,113.27/105,229.59 = 28,022.88/x
3. Step 3: Cross multiply
   70,113.27x = 105,229.59 × 28,022.88
4. Step 4: Simplify right side
   70,113.27x = 2,948,836,173.02
5. Step 5: Solve for x
   x = 2,948,836,173.02/70,113.27
6. Step 6: Final answer
   x = 42,058.17