Finding the Fourth Proportional to 353,665.06, 488,057.83 and 192,521.31

Step by Step Solution

1. Step 1: Write the proportion equation
   353,665.06 : 488,057.83 = 192,521.31 : x
2. Step 2: Convert to fraction form
   353,665.06/488,057.83 = 192,521.31/x
3. Step 3: Cross multiply
   353,665.06x = 488,057.83 × 192,521.31
4. Step 4: Simplify right side
   353,665.06x = 93,961,532,306.05
5. Step 5: Solve for x
   x = 93,961,532,306.05/353,665.06
6. Step 6: Final answer
   x = 265,679.43