Finding the Fourth Proportional to 30,818.63, 46,210.10 and 12,076.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,818.63 : 46,210.10 = 12,076.72 : x
2. Step 2: Convert to fraction form
   30,818.63/46,210.10 = 12,076.72/x
3. Step 3: Cross multiply
   30,818.63x = 46,210.10 × 12,076.72
4. Step 4: Simplify right side
   30,818.63x = 558,066,494.83
5. Step 5: Solve for x
   x = 558,066,494.83/30,818.63
6. Step 6: Final answer
   x = 18,108.09