Finding the Fourth Proportional to 10,908.06, 16,356.15 and 3,886.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,908.06 : 16,356.15 = 3,886.98 : x
2. Step 2: Convert to fraction form
   10,908.06/16,356.15 = 3,886.98/x
3. Step 3: Cross multiply
   10,908.06x = 16,356.15 × 3,886.98
4. Step 4: Simplify right side
   10,908.06x = 63,576,027.93
5. Step 5: Solve for x
   x = 63,576,027.93/10,908.06
6. Step 6: Final answer
   x = 5,828.35