Finding the Fourth Proportional to 13,091.40, 19,636.62 and 5,695.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,091.40 : 19,636.62 = 5,695.86 : x
2. Step 2: Convert to fraction form
   13,091.40/19,636.62 = 5,695.86/x
3. Step 3: Cross multiply
   13,091.40x = 19,636.62 × 5,695.86
4. Step 4: Simplify right side
   13,091.40x = 111,847,438.39
5. Step 5: Solve for x
   x = 111,847,438.39/13,091.40
6. Step 6: Final answer
   x = 8,543.58