Finding the Fourth Proportional to 34,976.34, 52,446.69 and 12,783.96

Step by Step Solution

1. Step 1: Write the proportion equation
   34,976.34 : 52,446.69 = 12,783.96 : x
2. Step 2: Convert to fraction form
   34,976.34/52,446.69 = 12,783.96/x
3. Step 3: Cross multiply
   34,976.34x = 52,446.69 × 12,783.96
4. Step 4: Simplify right side
   34,976.34x = 670,476,387.09
5. Step 5: Solve for x
   x = 670,476,387.09/34,976.34
6. Step 6: Final answer
   x = 19,169.43