Finding the Fourth Proportional to 53,019.42, 73,136.30 and 31,786.35

Step by Step Solution

1. Step 1: Write the proportion equation
   53,019.42 : 73,136.30 = 31,786.35 : x
2. Step 2: Convert to fraction form
   53,019.42/73,136.30 = 31,786.35/x
3. Step 3: Cross multiply
   53,019.42x = 73,136.30 × 31,786.35
4. Step 4: Simplify right side
   53,019.42x = 2,324,735,870.57
5. Step 5: Solve for x
   x = 2,324,735,870.57/53,019.42
6. Step 6: Final answer
   x = 43,846.87