Finding the Fourth Proportional to 355,445.00, 490,514.13 and 194,300.70

Step by Step Solution

1. Step 1: Write the proportion equation
   355,445.00 : 490,514.13 = 194,300.70 : x
2. Step 2: Convert to fraction form
   355,445.00/490,514.13 = 194,300.70/x
3. Step 3: Cross multiply
   355,445.00x = 490,514.13 × 194,300.70
4. Step 4: Simplify right side
   355,445.00x = 95,307,238,818.89
5. Step 5: Solve for x
   x = 95,307,238,818.89/355,445.00
6. Step 6: Final answer
   x = 268,134.99