Finding the Fourth Proportional to 80,150.14, 120,443.32 and 42,736.64

Step by Step Solution

1. Step 1: Write the proportion equation
   80,150.14 : 120,443.32 = 42,736.64 : x
2. Step 2: Convert to fraction form
   80,150.14/120,443.32 = 42,736.64/x
3. Step 3: Cross multiply
   80,150.14x = 120,443.32 × 42,736.64
4. Step 4: Simplify right side
   80,150.14x = 5,147,342,807.24
5. Step 5: Solve for x
   x = 5,147,342,807.24/80,150.14
6. Step 6: Final answer
   x = 64,221.26