Finding the Fourth Proportional to 570,131.56, 786,865 and 328,367.08

Step by Step Solution

1. Step 1: Write the proportion equation
   570,131.56 : 786,865 = 328,367.08 : x
2. Step 2: Convert to fraction form
   570,131.56/786,865 = 328,367.08/x
3. Step 3: Cross multiply
   570,131.56x = 786,865 × 328,367.08
4. Step 4: Simplify right side
   570,131.56x = 258,380,562,404.20
5. Step 5: Solve for x
   x = 258,380,562,404.20/570,131.56
6. Step 6: Final answer
   x = 453,194.63