Finding the Fourth Proportional to 20,812.67, 31,225.59 and 7,476.53

Step by Step Solution

1. Step 1: Write the proportion equation
   20,812.67 : 31,225.59 = 7,476.53 : x
2. Step 2: Convert to fraction form
   20,812.67/31,225.59 = 7,476.53/x
3. Step 3: Cross multiply
   20,812.67x = 31,225.59 × 7,476.53
4. Step 4: Simplify right side
   20,812.67x = 233,458,866.89
5. Step 5: Solve for x
   x = 233,458,866.89/20,812.67
6. Step 6: Final answer
   x = 11,217.15