Finding the Fourth Proportional to 12,473.82, 18,710.64 and 5,078.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,473.82 : 18,710.64 = 5,078.34 : x
2. Step 2: Convert to fraction form
   12,473.82/18,710.64 = 5,078.34/x
3. Step 3: Cross multiply
   12,473.82x = 18,710.64 × 5,078.34
4. Step 4: Simplify right side
   12,473.82x = 95,018,991.54
5. Step 5: Solve for x
   x = 95,018,991.54/12,473.82
6. Step 6: Final answer
   x = 7,617.47