Finding the Fourth Proportional to 492,816.42, 739,222.47 and 193,085.33

Step by Step Solution

1. Step 1: Write the proportion equation
   492,816.42 : 739,222.47 = 193,085.33 : x
2. Step 2: Convert to fraction form
   492,816.42/739,222.47 = 193,085.33/x
3. Step 3: Cross multiply
   492,816.42x = 739,222.47 × 193,085.33
4. Step 4: Simplify right side
   492,816.42x = 142,733,010,867.25
5. Step 5: Solve for x
   x = 142,733,010,867.25/492,816.42
6. Step 6: Final answer
   x = 289,627.14