Finding the Fourth Proportional to 10,827.81, 16,228.64 and 5,272.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,827.81 : 16,228.64 = 5,272.83 : x
2. Step 2: Convert to fraction form
   10,827.81/16,228.64 = 5,272.83/x
3. Step 3: Cross multiply
   10,827.81x = 16,228.64 × 5,272.83
4. Step 4: Simplify right side
   10,827.81x = 85,570,833.49
5. Step 5: Solve for x
   x = 85,570,833.49/10,827.81
6. Step 6: Final answer
   x = 7,902.88