Finding the Fourth Proportional to 10,211.52, 15,319.71 and 3,971.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,211.52 : 15,319.71 = 3,971.69 : x
2. Step 2: Convert to fraction form
   10,211.52/15,319.71 = 3,971.69/x
3. Step 3: Cross multiply
   10,211.52x = 15,319.71 × 3,971.69
4. Step 4: Simplify right side
   10,211.52x = 60,845,062.41
5. Step 5: Solve for x
   x = 60,845,062.41/10,211.52
6. Step 6: Final answer
   x = 5,958.47