Finding the Fourth Proportional to 33,120.09, 45,703.43 and 19,692.45

Step by Step Solution

1. Step 1: Write the proportion equation
   33,120.09 : 45,703.43 = 19,692.45 : x
2. Step 2: Convert to fraction form
   33,120.09/45,703.43 = 19,692.45/x
3. Step 3: Cross multiply
   33,120.09x = 45,703.43 × 19,692.45
4. Step 4: Simplify right side
   33,120.09x = 900,012,411.64
5. Step 5: Solve for x
   x = 900,012,411.64/33,120.09
6. Step 6: Final answer
   x = 27,174.21