Finding the Fourth Proportional to 30,506.49, 42,086.52 and 19,172.34

Step by Step Solution

1. Step 1: Write the proportion equation
   30,506.49 : 42,086.52 = 19,172.34 : x
2. Step 2: Convert to fraction form
   30,506.49/42,086.52 = 19,172.34/x
3. Step 3: Cross multiply
   30,506.49x = 42,086.52 × 19,172.34
4. Step 4: Simplify right side
   30,506.49x = 806,897,070.86
5. Step 5: Solve for x
   x = 806,897,070.86/30,506.49
6. Step 6: Final answer
   x = 26,450.01