Finding the Fourth Proportional to 30,684.33, 46,021.35 and 8,499.94

Step by Step Solution

1. Step 1: Write the proportion equation
   30,684.33 : 46,021.35 = 8,499.94 : x
2. Step 2: Convert to fraction form
   30,684.33/46,021.35 = 8,499.94/x
3. Step 3: Cross multiply
   30,684.33x = 46,021.35 × 8,499.94
4. Step 4: Simplify right side
   30,684.33x = 391,178,713.72
5. Step 5: Solve for x
   x = 391,178,713.72/30,684.33
6. Step 6: Final answer
   x = 12,748.48