Finding the Fourth Proportional to 30,503.22, 42,081.71 and 19,892.49

Step by Step Solution

1. Step 1: Write the proportion equation
   30,503.22 : 42,081.71 = 19,892.49 : x
2. Step 2: Convert to fraction form
   30,503.22/42,081.71 = 19,892.49/x
3. Step 3: Cross multiply
   30,503.22x = 42,081.71 × 19,892.49
4. Step 4: Simplify right side
   30,503.22x = 837,109,895.90
5. Step 5: Solve for x
   x = 837,109,895.90/30,503.22
6. Step 6: Final answer
   x = 27,443.33