Finding the Fourth Proportional to 9,910.25, 14,865.59 and 3,987.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910.25 : 14,865.59 = 3,987.73 : x
2. Step 2: Convert to fraction form
   9,910.25/14,865.59 = 3,987.73/x
3. Step 3: Cross multiply
   9,910.25x = 14,865.59 × 3,987.73
4. Step 4: Simplify right side
   9,910.25x = 59,279,987.76
5. Step 5: Solve for x
   x = 59,279,987.76/9,910.25
6. Step 6: Final answer
   x = 5,981.69