Finding the Fourth Proportional to 69,136.24, 103,759.72 and 31,713.94

Step by Step Solution

1. Step 1: Write the proportion equation
   69,136.24 : 103,759.72 = 31,713.94 : x
2. Step 2: Convert to fraction form
   69,136.24/103,759.72 = 31,713.94/x
3. Step 3: Cross multiply
   69,136.24x = 103,759.72 × 31,713.94
4. Step 4: Simplify right side
   69,136.24x = 3,290,629,534.50
5. Step 5: Solve for x
   x = 3,290,629,534.50/69,136.24
6. Step 6: Final answer
   x = 47,596.30