Finding the Fourth Proportional to 13,265.89, 19,891.98 and 3,904.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,265.89 : 19,891.98 = 3,904.69 : x
2. Step 2: Convert to fraction form
   13,265.89/19,891.98 = 3,904.69/x
3. Step 3: Cross multiply
   13,265.89x = 19,891.98 × 3,904.69
4. Step 4: Simplify right side
   13,265.89x = 77,671,965.66
5. Step 5: Solve for x
   x = 77,671,965.66/13,265.89
6. Step 6: Final answer
   x = 5,855.01