Finding the Fourth Proportional to 20,774.49, 31,160.69 and 7,625.83

Step by Step Solution

1. Step 1: Write the proportion equation
   20,774.49 : 31,160.69 = 7,625.83 : x
2. Step 2: Convert to fraction form
   20,774.49/31,160.69 = 7,625.83/x
3. Step 3: Cross multiply
   20,774.49x = 31,160.69 × 7,625.83
4. Step 4: Simplify right side
   20,774.49x = 237,625,968.82
5. Step 5: Solve for x
   x = 237,625,968.82/20,774.49
6. Step 6: Final answer
   x = 11,438.36