Finding the Fourth Proportional to 33,219.12, 45,822.24 and 19,781.40

Step by Step Solution

1. Step 1: Write the proportion equation
   33,219.12 : 45,822.24 = 19,781.40 : x
2. Step 2: Convert to fraction form
   33,219.12/45,822.24 = 19,781.40/x
3. Step 3: Cross multiply
   33,219.12x = 45,822.24 × 19,781.40
4. Step 4: Simplify right side
   33,219.12x = 906,428,058.34
5. Step 5: Solve for x
   x = 906,428,058.34/33,219.12
6. Step 6: Final answer
   x = 27,286.34