Finding the Fourth Proportional to 20,792.09, 31,200.49 and 7,653.69

Step by Step Solution

1. Step 1: Write the proportion equation
   20,792.09 : 31,200.49 = 7,653.69 : x
2. Step 2: Convert to fraction form
   20,792.09/31,200.49 = 7,653.69/x
3. Step 3: Cross multiply
   20,792.09x = 31,200.49 × 7,653.69
4. Step 4: Simplify right side
   20,792.09x = 238,798,887.88
5. Step 5: Solve for x
   x = 238,798,887.88/20,792.09
6. Step 6: Final answer
   x = 11,485.08