Finding the Fourth Proportional to 10,085.73, 13,918.03 and 5,609.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,085.73 : 13,918.03 = 5,609.86 : x
2. Step 2: Convert to fraction form
   10,085.73/13,918.03 = 5,609.86/x
3. Step 3: Cross multiply
   10,085.73x = 13,918.03 × 5,609.86
4. Step 4: Simplify right side
   10,085.73x = 78,078,199.78
5. Step 5: Solve for x
   x = 78,078,199.78/10,085.73
6. Step 6: Final answer
   x = 7,741.45