Finding the Fourth Proportional to 10,100.61, 13,928.09 and 5,908.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,100.61 : 13,928.09 = 5,908.05 : x
2. Step 2: Convert to fraction form
   10,100.61/13,928.09 = 5,908.05/x
3. Step 3: Cross multiply
   10,100.61x = 13,928.09 × 5,908.05
4. Step 4: Simplify right side
   10,100.61x = 82,287,822.58
5. Step 5: Solve for x
   x = 82,287,822.58/10,100.61
6. Step 6: Final answer
   x = 8,146.82