Finding the Fourth Proportional to 353,321.06, 528,756.86 and 338,624.42

Step by Step Solution

1. Step 1: Write the proportion equation
   353,321.06 : 528,756.86 = 338,624.42 : x
2. Step 2: Convert to fraction form
   353,321.06/528,756.86 = 338,624.42/x
3. Step 3: Cross multiply
   353,321.06x = 528,756.86 × 338,624.42
4. Step 4: Simplify right side
   353,321.06x = 179,049,985,038.52
5. Step 5: Solve for x
   x = 179,049,985,038.52/353,321.06
6. Step 6: Final answer
   x = 506,762.84