Finding the Fourth Proportional to 39,973.33, 55,162.33 and 21,823.43

Step by Step Solution

1. Step 1: Write the proportion equation
   39,973.33 : 55,162.33 = 21,823.43 : x
2. Step 2: Convert to fraction form
   39,973.33/55,162.33 = 21,823.43/x
3. Step 3: Cross multiply
   39,973.33x = 55,162.33 × 21,823.43
4. Step 4: Simplify right side
   39,973.33x = 1,203,831,330.74
5. Step 5: Solve for x
   x = 1,203,831,330.74/39,973.33
6. Step 6: Final answer
   x = 30,115.86