Finding the Fourth Proportional to 30,603.98, 45,900.69 and 8,114.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,603.98 : 45,900.69 = 8,114.82 : x
2. Step 2: Convert to fraction form
   30,603.98/45,900.69 = 8,114.82/x
3. Step 3: Cross multiply
   30,603.98x = 45,900.69 × 8,114.82
4. Step 4: Simplify right side
   30,603.98x = 372,475,837.23
5. Step 5: Solve for x
   x = 372,475,837.23/30,603.98
6. Step 6: Final answer
   x = 12,170.83