Finding the Fourth Proportional to 16,419.81, 22,659.37 and 9,346.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,419.81 : 22,659.37 = 9,346.24 : x
2. Step 2: Convert to fraction form
   16,419.81/22,659.37 = 9,346.24/x
3. Step 3: Cross multiply
   16,419.81x = 22,659.37 × 9,346.24
4. Step 4: Simplify right side
   16,419.81x = 211,779,773.61
5. Step 5: Solve for x
   x = 211,779,773.61/16,419.81
6. Step 6: Final answer
   x = 12,897.82