Finding the Fourth Proportional to 45,308.58, 62,453.12 and 30,768.20

Step by Step Solution

1. Step 1: Write the proportion equation
   45,308.58 : 62,453.12 = 30,768.20 : x
2. Step 2: Convert to fraction form
   45,308.58/62,453.12 = 30,768.20/x
3. Step 3: Cross multiply
   45,308.58x = 62,453.12 × 30,768.20
4. Step 4: Simplify right side
   45,308.58x = 1,921,570,086.78
5. Step 5: Solve for x
   x = 1,921,570,086.78/45,308.58
6. Step 6: Final answer
   x = 42,410.73