Finding the Fourth Proportional to 31,304.82, 46,972.53 and 13,772.46

Step by Step Solution

1. Step 1: Write the proportion equation
   31,304.82 : 46,972.53 = 13,772.46 : x
2. Step 2: Convert to fraction form
   31,304.82/46,972.53 = 13,772.46/x
3. Step 3: Cross multiply
   31,304.82x = 46,972.53 × 13,772.46
4. Step 4: Simplify right side
   31,304.82x = 646,927,290.52
5. Step 5: Solve for x
   x = 646,927,290.52/31,304.82
6. Step 6: Final answer
   x = 20,665.42