Finding the Fourth Proportional to 16,131.86, 22,259.56 and 9,056.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,131.86 : 22,259.56 = 9,056.91 : x
2. Step 2: Convert to fraction form
   16,131.86/22,259.56 = 9,056.91/x
3. Step 3: Cross multiply
   16,131.86x = 22,259.56 × 9,056.91
4. Step 4: Simplify right side
   16,131.86x = 201,602,909.37
5. Step 5: Solve for x
   x = 201,602,909.37/16,131.86
6. Step 6: Final answer
   x = 12,497.19