Finding the Fourth Proportional to 10,515.71, 15,770.16 and 3,493.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,515.71 : 15,770.16 = 3,493.84 : x
2. Step 2: Convert to fraction form
   10,515.71/15,770.16 = 3,493.84/x
3. Step 3: Cross multiply
   10,515.71x = 15,770.16 × 3,493.84
4. Step 4: Simplify right side
   10,515.71x = 55,098,411.31
5. Step 5: Solve for x
   x = 55,098,411.31/10,515.71
6. Step 6: Final answer
   x = 5,239.63