Finding the Fourth Proportional to 57,973.06, 86,846.34 and 39,958.09

Step by Step Solution

1. Step 1: Write the proportion equation
   57,973.06 : 86,846.34 = 39,958.09 : x
2. Step 2: Convert to fraction form
   57,973.06/86,846.34 = 39,958.09/x
3. Step 3: Cross multiply
   57,973.06x = 86,846.34 × 39,958.09
4. Step 4: Simplify right side
   57,973.06x = 3,470,213,869.89
5. Step 5: Solve for x
   x = 3,470,213,869.89/57,973.06
6. Step 6: Final answer
   x = 59,859.08