Finding the Fourth Proportional to 16,419.52, 22,658.96 and 9,345.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,419.52 : 22,658.96 = 9,345.94 : x
2. Step 2: Convert to fraction form
   16,419.52/22,658.96 = 9,345.94/x
3. Step 3: Cross multiply
   16,419.52x = 22,658.96 × 9,345.94
4. Step 4: Simplify right side
   16,419.52x = 211,769,194.77
5. Step 5: Solve for x
   x = 211,769,194.77/16,419.52
6. Step 6: Final answer
   x = 12,897.41