Finding the Fourth Proportional to 36,972.42, 51,032.39 and 21,870.33

Step by Step Solution

1. Step 1: Write the proportion equation
   36,972.42 : 51,032.39 = 21,870.33 : x
2. Step 2: Convert to fraction form
   36,972.42/51,032.39 = 21,870.33/x
3. Step 3: Cross multiply
   36,972.42x = 51,032.39 × 21,870.33
4. Step 4: Simplify right side
   36,972.42x = 1,116,095,022.04
5. Step 5: Solve for x
   x = 1,116,095,022.04/36,972.42
6. Step 6: Final answer
   x = 30,187.23