Finding the Fourth Proportional to 80,438.18, 111,009.92 and 46,448.10

Step by Step Solution

1. Step 1: Write the proportion equation
   80,438.18 : 111,009.92 = 46,448.10 : x
2. Step 2: Convert to fraction form
   80,438.18/111,009.92 = 46,448.10/x
3. Step 3: Cross multiply
   80,438.18x = 111,009.92 × 46,448.10
4. Step 4: Simplify right side
   80,438.18x = 5,156,199,865.15
5. Step 5: Solve for x
   x = 5,156,199,865.15/80,438.18
6. Step 6: Final answer
   x = 64,101.40