Finding the Fourth Proportional to 9,109.63, 13,666.74 and 3,185.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,109.63 : 13,666.74 = 3,185.83 : x
2. Step 2: Convert to fraction form
   9,109.63/13,666.74 = 3,185.83/x
3. Step 3: Cross multiply
   9,109.63x = 13,666.74 × 3,185.83
4. Step 4: Simplify right side
   9,109.63x = 43,539,910.29
5. Step 5: Solve for x
   x = 43,539,910.29/9,109.63
6. Step 6: Final answer
   x = 4,779.55