Finding the Fourth Proportional to 70,992.90, 97,969.56 and 39,162.06

Step by Step Solution

1. Step 1: Write the proportion equation
   70,992.90 : 97,969.56 = 39,162.06 : x
2. Step 2: Convert to fraction form
   70,992.90/97,969.56 = 39,162.06/x
3. Step 3: Cross multiply
   70,992.90x = 97,969.56 × 39,162.06
4. Step 4: Simplify right side
   70,992.90x = 3,836,689,786.89
5. Step 5: Solve for x
   x = 3,836,689,786.89/70,992.90
6. Step 6: Final answer
   x = 54,043.29