Finding the Fourth Proportional to 353,158,362.67, 487,354,672.73 and 194,385,091.05

Step by Step Solution

1. Step 1: Write the proportion equation
   353,158,362.67 : 487,354,672.73 = 194,385,091.05 : x
2. Step 2: Convert to fraction form
   353,158,362.67/487,354,672.73 = 194,385,091.05/x
3. Step 3: Cross multiply
   353,158,362.67x = 487,354,672.73 × 194,385,091.05
4. Step 4: Simplify right side
   353,158,362.67x = 94,734,482,428,855,296
5. Step 5: Solve for x
   x = 94,734,482,428,855,296/353,158,362.67
6. Step 6: Final answer
   x = 268,249,296.75