Finding the Fourth Proportional to 10,420.38, 15,595.94 and 7,941.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,420.38 : 15,595.94 = 7,941.17 : x
2. Step 2: Convert to fraction form
   10,420.38/15,595.94 = 7,941.17/x
3. Step 3: Cross multiply
   10,420.38x = 15,595.94 × 7,941.17
4. Step 4: Simplify right side
   10,420.38x = 123,850,069.69
5. Step 5: Solve for x
   x = 123,850,069.69/10,420.38
6. Step 6: Final answer
   x = 11,885.37