Finding the Fourth Proportional to 300,758.19, 451,041.89 and 98,308.52

Step by Step Solution

1. Step 1: Write the proportion equation
   300,758.19 : 451,041.89 = 98,308.52 : x
2. Step 2: Convert to fraction form
   300,758.19/451,041.89 = 98,308.52/x
3. Step 3: Cross multiply
   300,758.19x = 451,041.89 × 98,308.52
4. Step 4: Simplify right side
   300,758.19x = 44,341,257,917.15
5. Step 5: Solve for x
   x = 44,341,257,917.15/300,758.19
6. Step 6: Final answer
   x = 147,431.59