Finding the Fourth Proportional to 13,484.02, 18,609.73 and 7,743.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,484.02 : 18,609.73 = 7,743.75 : x
2. Step 2: Convert to fraction form
   13,484.02/18,609.73 = 7,743.75/x
3. Step 3: Cross multiply
   13,484.02x = 18,609.73 × 7,743.75
4. Step 4: Simplify right side
   13,484.02x = 144,109,003.64
5. Step 5: Solve for x
   x = 144,109,003.64/13,484.02
6. Step 6: Final answer
   x = 10,687.40