Finding the Fourth Proportional to 10,686.42, 16,030.53 and 2,789.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.42 : 16,030.53 = 2,789.98 : x
2. Step 2: Convert to fraction form
   10,686.42/16,030.53 = 2,789.98/x
3. Step 3: Cross multiply
   10,686.42x = 16,030.53 × 2,789.98
4. Step 4: Simplify right side
   10,686.42x = 44,724,858.09
5. Step 5: Solve for x
   x = 44,724,858.09/10,686.42
6. Step 6: Final answer
   x = 4,185.20