Finding the Fourth Proportional to 445,100.56, 667,707.43 and 141,386.37

Step by Step Solution

1. Step 1: Write the proportion equation
   445,100.56 : 667,707.43 = 141,386.37 : x
2. Step 2: Convert to fraction form
   445,100.56/667,707.43 = 141,386.37/x
3. Step 3: Cross multiply
   445,100.56x = 667,707.43 × 141,386.37
4. Step 4: Simplify right side
   445,100.56x = 94,404,729,749.73
5. Step 5: Solve for x
   x = 94,404,729,749.73/445,100.56
6. Step 6: Final answer
   x = 212,097.53