Finding the Fourth Proportional to 353,970.24, 488,478.72 and 194,994.24

Step by Step Solution

1. Step 1: Write the proportion equation
   353,970.24 : 488,478.72 = 194,994.24 : x
2. Step 2: Convert to fraction form
   353,970.24/488,478.72 = 194,994.24/x
3. Step 3: Cross multiply
   353,970.24x = 488,478.72 × 194,994.24
4. Step 4: Simplify right side
   353,970.24x = 95,250,536,762.57
5. Step 5: Solve for x
   x = 95,250,536,762.57/353,970.24
6. Step 6: Final answer
   x = 269,091.93