Finding the Fourth Proportional to 70,945.31, 97,906.89 and 42,261.05

Step by Step Solution

1. Step 1: Write the proportion equation
   70,945.31 : 97,906.89 = 42,261.05 : x
2. Step 2: Convert to fraction form
   70,945.31/97,906.89 = 42,261.05/x
3. Step 3: Cross multiply
   70,945.31x = 97,906.89 × 42,261.05
4. Step 4: Simplify right side
   70,945.31x = 4,137,647,762.33
5. Step 5: Solve for x
   x = 4,137,647,762.33/70,945.31
6. Step 6: Final answer
   x = 58,321.66