Finding the Fourth Proportional to 9,253.64, 13,870.71 and 3,987.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,253.64 : 13,870.71 = 3,987.41 : x
2. Step 2: Convert to fraction form
   9,253.64/13,870.71 = 3,987.41/x
3. Step 3: Cross multiply
   9,253.64x = 13,870.71 × 3,987.41
4. Step 4: Simplify right side
   9,253.64x = 55,308,207.76
5. Step 5: Solve for x
   x = 55,308,207.76/9,253.64
6. Step 6: Final answer
   x = 5,976.91