Finding the Fourth Proportional to 13,270.47, 19,909.14 and 3,910.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,270.47 : 19,909.14 = 3,910.82 : x
2. Step 2: Convert to fraction form
   13,270.47/19,909.14 = 3,910.82/x
3. Step 3: Cross multiply
   13,270.47x = 19,909.14 × 3,910.82
4. Step 4: Simplify right side
   13,270.47x = 77,861,062.89
5. Step 5: Solve for x
   x = 77,861,062.89/13,270.47
6. Step 6: Final answer
   x = 5,867.24