Finding the Fourth Proportional to 8,738.82, 12,045.51 and 5,905.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,738.82 : 12,045.51 = 5,905.31 : x
2. Step 2: Convert to fraction form
   8,738.82/12,045.51 = 5,905.31/x
3. Step 3: Cross multiply
   8,738.82x = 12,045.51 × 5,905.31
4. Step 4: Simplify right side
   8,738.82x = 71,132,410.43
5. Step 5: Solve for x
   x = 71,132,410.43/8,738.82
6. Step 6: Final answer
   x = 8,139.82