Finding the Fourth Proportional to 12,448.05, 18,677.82 and 5,780.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,448.05 : 18,677.82 = 5,780.29 : x
2. Step 2: Convert to fraction form
   12,448.05/18,677.82 = 5,780.29/x
3. Step 3: Cross multiply
   12,448.05x = 18,677.82 × 5,780.29
4. Step 4: Simplify right side
   12,448.05x = 107,963,124.87
5. Step 5: Solve for x
   x = 107,963,124.87/12,448.05
6. Step 6: Final answer
   x = 8,673.09