Finding the Fourth Proportional to 10,487.67, 15,722.15 and 3,914.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,487.67 : 15,722.15 = 3,914.16 : x
2. Step 2: Convert to fraction form
   10,487.67/15,722.15 = 3,914.16/x
3. Step 3: Cross multiply
   10,487.67x = 15,722.15 × 3,914.16
4. Step 4: Simplify right side
   10,487.67x = 61,538,991.07
5. Step 5: Solve for x
   x = 61,538,991.07/10,487.67
6. Step 6: Final answer
   x = 5,867.75