Finding the Fourth Proportional to 36,647.58, 50,529.33 and 30,972.31

Step by Step Solution

1. Step 1: Write the proportion equation
   36,647.58 : 50,529.33 = 30,972.31 : x
2. Step 2: Convert to fraction form
   36,647.58/50,529.33 = 30,972.31/x
3. Step 3: Cross multiply
   36,647.58x = 50,529.33 × 30,972.31
4. Step 4: Simplify right side
   36,647.58x = 1,565,010,276.61
5. Step 5: Solve for x
   x = 1,565,010,276.61/36,647.58
6. Step 6: Final answer
   x = 42,704.33