Finding the Fourth Proportional to 80,443.60, 111,028.32 and 46,457.62

Step by Step Solution

1. Step 1: Write the proportion equation
   80,443.60 : 111,028.32 = 46,457.62 : x
2. Step 2: Convert to fraction form
   80,443.60/111,028.32 = 46,457.62/x
3. Step 3: Cross multiply
   80,443.60x = 111,028.32 × 46,457.62
4. Step 4: Simplify right side
   80,443.60x = 5,158,111,499.80
5. Step 5: Solve for x
   x = 5,158,111,499.80/80,443.60
6. Step 6: Final answer
   x = 64,120.84