Finding the Fourth Proportional to 10,886.07, 16,331.12 and 3,870.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,886.07 : 16,331.12 = 3,870.25 : x
2. Step 2: Convert to fraction form
   10,886.07/16,331.12 = 3,870.25/x
3. Step 3: Cross multiply
   10,886.07x = 16,331.12 × 3,870.25
4. Step 4: Simplify right side
   10,886.07x = 63,205,517.18
5. Step 5: Solve for x
   x = 63,205,517.18/10,886.07
6. Step 6: Final answer
   x = 5,806.09