Finding the Fourth Proportional to 10,905.12, 16,355.25 and 5,058.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,905.12 : 16,355.25 = 5,058.54 : x
2. Step 2: Convert to fraction form
   10,905.12/16,355.25 = 5,058.54/x
3. Step 3: Cross multiply
   10,905.12x = 16,355.25 × 5,058.54
4. Step 4: Simplify right side
   10,905.12x = 82,733,686.34
5. Step 5: Solve for x
   x = 82,733,686.34/10,905.12
6. Step 6: Final answer
   x = 7,586.68