Finding the Fourth Proportional to 72,644.84, 108,973.52 and 20,054.33

Step by Step Solution

1. Step 1: Write the proportion equation
   72,644.84 : 108,973.52 = 20,054.33 : x
2. Step 2: Convert to fraction form
   72,644.84/108,973.52 = 20,054.33/x
3. Step 3: Cross multiply
   72,644.84x = 108,973.52 × 20,054.33
4. Step 4: Simplify right side
   72,644.84x = 2,185,390,931.34
5. Step 5: Solve for x
   x = 2,185,390,931.34/72,644.84
6. Step 6: Final answer
   x = 30,083.22