Finding the Fourth Proportional to 81,436.98, 122,171.61 and 25,274.69

Step by Step Solution

1. Step 1: Write the proportion equation
   81,436.98 : 122,171.61 = 25,274.69 : x
2. Step 2: Convert to fraction form
   81,436.98/122,171.61 = 25,274.69/x
3. Step 3: Cross multiply
   81,436.98x = 122,171.61 × 25,274.69
4. Step 4: Simplify right side
   81,436.98x = 3,087,848,958.69
5. Step 5: Solve for x
   x = 3,087,848,958.69/81,436.98
6. Step 6: Final answer
   x = 37,917.04