Finding the Fourth Proportional to 92,499.90, 138,742.71 and 25,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,499.90 : 138,742.71 = 25,936.50 : x
2. Step 2: Convert to fraction form
   92,499.90/138,742.71 = 25,936.50/x
3. Step 3: Cross multiply
   92,499.90x = 138,742.71 × 25,936.50
4. Step 4: Simplify right side
   92,499.90x = 3,598,500,297.92
5. Step 5: Solve for x
   x = 3,598,500,297.92/92,499.90
6. Step 6: Final answer
   x = 38,902.75