Finding the Fourth Proportional to 345,018.78, 476,139.89 and 192,047.26

Step by Step Solution

1. Step 1: Write the proportion equation
   345,018.78 : 476,139.89 = 192,047.26 : x
2. Step 2: Convert to fraction form
   345,018.78/476,139.89 = 192,047.26/x
3. Step 3: Cross multiply
   345,018.78x = 476,139.89 × 192,047.26
4. Step 4: Simplify right side
   345,018.78x = 91,441,361,251.20
5. Step 5: Solve for x
   x = 91,441,361,251.20/345,018.78
6. Step 6: Final answer
   x = 265,033.00