Finding the Fourth Proportional to 36,923.31, 55,434.20 and 31,412.07

Step by Step Solution

1. Step 1: Write the proportion equation
   36,923.31 : 55,434.20 = 31,412.07 : x
2. Step 2: Convert to fraction form
   36,923.31/55,434.20 = 31,412.07/x
3. Step 3: Cross multiply
   36,923.31x = 55,434.20 × 31,412.07
4. Step 4: Simplify right side
   36,923.31x = 1,741,302,813.73
5. Step 5: Solve for x
   x = 1,741,302,813.73/36,923.31
6. Step 6: Final answer
   x = 47,159.99