Finding the Fourth Proportional to 70,786.31, 106,105.43 and 26,393.75

Step by Step Solution

1. Step 1: Write the proportion equation
   70,786.31 : 106,105.43 = 26,393.75 : x
2. Step 2: Convert to fraction form
   70,786.31/106,105.43 = 26,393.75/x
3. Step 3: Cross multiply
   70,786.31x = 106,105.43 × 26,393.75
4. Step 4: Simplify right side
   70,786.31x = 2,800,520,061.09
5. Step 5: Solve for x
   x = 2,800,520,061.09/70,786.31
6. Step 6: Final answer
   x = 39,563.02