Finding the Fourth Proportional to 354,964.56, 489,870.94 and 193,834.56

Step by Step Solution

1. Step 1: Write the proportion equation
   354,964.56 : 489,870.94 = 193,834.56 : x
2. Step 2: Convert to fraction form
   354,964.56/489,870.94 = 193,834.56/x
3. Step 3: Cross multiply
   354,964.56x = 489,870.94 × 193,834.56
4. Step 4: Simplify right side
   354,964.56x = 94,953,918,111.69
5. Step 5: Solve for x
   x = 94,953,918,111.69/354,964.56
6. Step 6: Final answer
   x = 267,502.53