Finding the Fourth Proportional to 16,385.25, 22,613.56 and 9,312.74

Step by Step Solution

1. Step 1: Write the proportion equation
   16,385.25 : 22,613.56 = 9,312.74 : x
2. Step 2: Convert to fraction form
   16,385.25/22,613.56 = 9,312.74/x
3. Step 3: Cross multiply
   16,385.25x = 22,613.56 × 9,312.74
4. Step 4: Simplify right side
   16,385.25x = 210,594,091.69
5. Step 5: Solve for x
   x = 210,594,091.69/16,385.25
6. Step 6: Final answer
   x = 12,852.66