Finding the Fourth Proportional to 46,719.18, 64,450.06 and 30,579.39

Step by Step Solution

1. Step 1: Write the proportion equation
   46,719.18 : 64,450.06 = 30,579.39 : x
2. Step 2: Convert to fraction form
   46,719.18/64,450.06 = 30,579.39/x
3. Step 3: Cross multiply
   46,719.18x = 64,450.06 × 30,579.39
4. Step 4: Simplify right side
   46,719.18x = 1,970,843,443.81
5. Step 5: Solve for x
   x = 1,970,843,443.81/46,719.18
6. Step 6: Final answer
   x = 42,184.89