Finding the Fourth Proportional to 16,406.82, 22,633.73 and 9,687.87

Step by Step Solution

1. Step 1: Write the proportion equation
   16,406.82 : 22,633.73 = 9,687.87 : x
2. Step 2: Convert to fraction form
   16,406.82/22,633.73 = 9,687.87/x
3. Step 3: Cross multiply
   16,406.82x = 22,633.73 × 9,687.87
4. Step 4: Simplify right side
   16,406.82x = 219,272,642.00
5. Step 5: Solve for x
   x = 219,272,642.00/16,406.82
6. Step 6: Final answer
   x = 13,364.72