Finding the Fourth Proportional to 741,144.78, 1,111,782.83 and 208,670.42

Step by Step Solution

1. Step 1: Write the proportion equation
   741,144.78 : 1,111,782.83 = 208,670.42 : x
2. Step 2: Convert to fraction form
   741,144.78/1,111,782.83 = 208,670.42/x
3. Step 3: Cross multiply
   741,144.78x = 1,111,782.83 × 208,670.42
4. Step 4: Simplify right side
   741,144.78x = 231,996,191,820.99
5. Step 5: Solve for x
   x = 231,996,191,820.99/741,144.78
6. Step 6: Final answer
   x = 313,024.12