Finding the Fourth Proportional to 300,722.50, 450,908.76 and 113,748.58

Step by Step Solution

1. Step 1: Write the proportion equation
   300,722.50 : 450,908.76 = 113,748.58 : x
2. Step 2: Convert to fraction form
   300,722.50/450,908.76 = 113,748.58/x
3. Step 3: Cross multiply
   300,722.50x = 450,908.76 × 113,748.58
4. Step 4: Simplify right side
   300,722.50x = 51,290,231,159.56
5. Step 5: Solve for x
   x = 51,290,231,159.56/300,722.50
6. Step 6: Final answer
   x = 170,556.68