Finding the Fourth Proportional to 492,068.86, 738,165.72 and 192,511

Step by Step Solution

1. Step 1: Write the proportion equation
   492,068.86 : 738,165.72 = 192,511 : x
2. Step 2: Convert to fraction form
   492,068.86/738,165.72 = 192,511/x
3. Step 3: Cross multiply
   492,068.86x = 738,165.72 × 192,511
4. Step 4: Simplify right side
   492,068.86x = 142,105,020,922.92
5. Step 5: Solve for x
   x = 142,105,020,922.92/492,068.86
6. Step 6: Final answer
   x = 288,790.92