Finding the Fourth Proportional to 39,867.32, 55,016.94 and 21,962.34

Step by Step Solution

1. Step 1: Write the proportion equation
   39,867.32 : 55,016.94 = 21,962.34 : x
2. Step 2: Convert to fraction form
   39,867.32/55,016.94 = 21,962.34/x
3. Step 3: Cross multiply
   39,867.32x = 55,016.94 × 21,962.34
4. Step 4: Simplify right side
   39,867.32x = 1,208,300,742.04
5. Step 5: Solve for x
   x = 1,208,300,742.04/39,867.32
6. Step 6: Final answer
   x = 30,308.05