Finding the Fourth Proportional to 25,308.82, 37,962.28 and 7,778.19

Step by Step Solution

1. Step 1: Write the proportion equation
   25,308.82 : 37,962.28 = 7,778.19 : x
2. Step 2: Convert to fraction form
   25,308.82/37,962.28 = 7,778.19/x
3. Step 3: Cross multiply
   25,308.82x = 37,962.28 × 7,778.19
4. Step 4: Simplify right side
   25,308.82x = 295,277,787.78
5. Step 5: Solve for x
   x = 295,277,787.78/25,308.82
6. Step 6: Final answer
   x = 11,666.99