Finding the Fourth Proportional to 70,911.56, 97,857.94 and 42,617.25

Step by Step Solution

1. Step 1: Write the proportion equation
   70,911.56 : 97,857.94 = 42,617.25 : x
2. Step 2: Convert to fraction form
   70,911.56/97,857.94 = 42,617.25/x
3. Step 3: Cross multiply
   70,911.56x = 97,857.94 × 42,617.25
4. Step 4: Simplify right side
   70,911.56x = 4,170,436,293.47
5. Step 5: Solve for x
   x = 4,170,436,293.47/70,911.56
6. Step 6: Final answer
   x = 58,811.80