Finding the Fourth Proportional to 71,591.89, 107,379.63 and 19,005.49

Step by Step Solution

1. Step 1: Write the proportion equation
   71,591.89 : 107,379.63 = 19,005.49 : x
2. Step 2: Convert to fraction form
   71,591.89/107,379.63 = 19,005.49/x
3. Step 3: Cross multiply
   71,591.89x = 107,379.63 × 19,005.49
4. Step 4: Simplify right side
   71,591.89x = 2,040,802,484.17
5. Step 5: Solve for x
   x = 2,040,802,484.17/71,591.89
6. Step 6: Final answer
   x = 28,506.06