Finding the Fourth Proportional to 39,921.33, 55,090.35 and 22,016.01

Step by Step Solution

1. Step 1: Write the proportion equation
   39,921.33 : 55,090.35 = 22,016.01 : x
2. Step 2: Convert to fraction form
   39,921.33/55,090.35 = 22,016.01/x
3. Step 3: Cross multiply
   39,921.33x = 55,090.35 × 22,016.01
4. Step 4: Simplify right side
   39,921.33x = 1,212,869,696.50
5. Step 5: Solve for x
   x = 1,212,869,696.50/39,921.33
6. Step 6: Final answer
   x = 30,381.50