Finding the Fourth Proportional to 345,881.50, 477,323.76 and 194,978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   345,881.50 : 477,323.76 = 194,978.50 : x
2. Step 2: Convert to fraction form
   345,881.50/477,323.76 = 194,978.50/x
3. Step 3: Cross multiply
   345,881.50x = 477,323.76 × 194,978.50
4. Step 4: Simplify right side
   345,881.50x = 93,067,870,739.16
5. Step 5: Solve for x
   x = 93,067,870,739.16/345,881.50
6. Step 6: Final answer
   x = 269,074.44