Finding the Fourth Proportional to 140,618.43, 210,949.58 and 45,826.56

Step by Step Solution

1. Step 1: Write the proportion equation
   140,618.43 : 210,949.58 = 45,826.56 : x
2. Step 2: Convert to fraction form
   140,618.43/210,949.58 = 45,826.56/x
3. Step 3: Cross multiply
   140,618.43x = 210,949.58 × 45,826.56
4. Step 4: Simplify right side
   140,618.43x = 9,667,093,699.41
5. Step 5: Solve for x
   x = 9,667,093,699.41/140,618.43
6. Step 6: Final answer
   x = 68,746.99