Finding the Fourth Proportional to 91,283.15, 136,936.27 and 31,323.31

Step by Step Solution

1. Step 1: Write the proportion equation
   91,283.15 : 136,936.27 = 31,323.31 : x
2. Step 2: Convert to fraction form
   91,283.15/136,936.27 = 31,323.31/x
3. Step 3: Cross multiply
   91,283.15x = 136,936.27 × 31,323.31
4. Step 4: Simplify right side
   91,283.15x = 4,289,296,932.27
5. Step 5: Solve for x
   x = 4,289,296,932.27/91,283.15
6. Step 6: Final answer
   x = 46,988.92