Finding the Fourth Proportional to 10,807, 16,218.10 and 3,881.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,807 : 16,218.10 = 3,881.72 : x
2. Step 2: Convert to fraction form
   10,807/16,218.10 = 3,881.72/x
3. Step 3: Cross multiply
   10,807x = 16,218.10 × 3,881.72
4. Step 4: Simplify right side
   10,807x = 62,954,123.13
5. Step 5: Solve for x
   x = 62,954,123.13/10,807
6. Step 6: Final answer
   x = 5,825.31