Finding the Fourth Proportional to 25,287.57, 37,938.69 and 7,759.98

Step by Step Solution

1. Step 1: Write the proportion equation
   25,287.57 : 37,938.69 = 7,759.98 : x
2. Step 2: Convert to fraction form
   25,287.57/37,938.69 = 7,759.98/x
3. Step 3: Cross multiply
   25,287.57x = 37,938.69 × 7,759.98
4. Step 4: Simplify right side
   25,287.57x = 294,403,475.63
5. Step 5: Solve for x
   x = 294,403,475.63/25,287.57
6. Step 6: Final answer
   x = 11,642.22