Finding the Fourth Proportional to 70,019.78, 96,644.76 and 41,720

Step by Step Solution

1. Step 1: Write the proportion equation
   70,019.78 : 96,644.76 = 41,720 : x
2. Step 2: Convert to fraction form
   70,019.78/96,644.76 = 41,720/x
3. Step 3: Cross multiply
   70,019.78x = 96,644.76 × 41,720
4. Step 4: Simplify right side
   70,019.78x = 4,032,019,387.20
5. Step 5: Solve for x
   x = 4,032,019,387.20/70,019.78
6. Step 6: Final answer
   x = 57,584.01