Finding the Fourth Proportional to 91,964.88, 137,936.94 and 25,414.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,964.88 : 137,936.94 = 25,414.50 : x
2. Step 2: Convert to fraction form
   91,964.88/137,936.94 = 25,414.50/x
3. Step 3: Cross multiply
   91,964.88x = 137,936.94 × 25,414.50
4. Step 4: Simplify right side
   91,964.88x = 3,505,598,361.63
5. Step 5: Solve for x
   x = 3,505,598,361.63/91,964.88
6. Step 6: Final answer
   x = 38,118.88