Finding the Fourth Proportional to 47,780.04, 71,678.71 and 19,684.49

Step by Step Solution

1. Step 1: Write the proportion equation
   47,780.04 : 71,678.71 = 19,684.49 : x
2. Step 2: Convert to fraction form
   47,780.04/71,678.71 = 19,684.49/x
3. Step 3: Cross multiply
   47,780.04x = 71,678.71 × 19,684.49
4. Step 4: Simplify right side
   47,780.04x = 1,410,958,405.69
5. Step 5: Solve for x
   x = 1,410,958,405.69/47,780.04
6. Step 6: Final answer
   x = 29,530.29