Finding the Fourth Proportional to 10,210.73, 15,317.03 and 3,971.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,210.73 : 15,317.03 = 3,971.21 : x
2. Step 2: Convert to fraction form
   10,210.73/15,317.03 = 3,971.21/x
3. Step 3: Cross multiply
   10,210.73x = 15,317.03 × 3,971.21
4. Step 4: Simplify right side
   10,210.73x = 60,827,066.12
5. Step 5: Solve for x
   x = 60,827,066.12/10,210.73
6. Step 6: Final answer
   x = 5,957.17