Finding the Fourth Proportional to 14,645.10, 20,209.59 and 8,357.34

Step by Step Solution

1. Step 1: Write the proportion equation
   14,645.10 : 20,209.59 = 8,357.34 : x
2. Step 2: Convert to fraction form
   14,645.10/20,209.59 = 8,357.34/x
3. Step 3: Cross multiply
   14,645.10x = 20,209.59 × 8,357.34
4. Step 4: Simplify right side
   14,645.10x = 168,898,414.89
5. Step 5: Solve for x
   x = 168,898,414.89/14,645.10
6. Step 6: Final answer
   x = 11,532.76