Finding the Fourth Proportional to 300,371.49, 450,513.50 and 113,339.25

Step by Step Solution

1. Step 1: Write the proportion equation
   300,371.49 : 450,513.50 = 113,339.25 : x
2. Step 2: Convert to fraction form
   300,371.49/450,513.50 = 113,339.25/x
3. Step 3: Cross multiply
   300,371.49x = 450,513.50 × 113,339.25
4. Step 4: Simplify right side
   300,371.49x = 51,060,861,638.18
5. Step 5: Solve for x
   x = 51,060,861,638.18/300,371.49
6. Step 6: Final answer
   x = 169,992.37