Finding the Fourth Proportional to 92,426.42, 138,648.10 and 25,866.36

Step by Step Solution

1. Step 1: Write the proportion equation
   92,426.42 : 138,648.10 = 25,866.36 : x
2. Step 2: Convert to fraction form
   92,426.42/138,648.10 = 25,866.36/x
3. Step 3: Cross multiply
   92,426.42x = 138,648.10 × 25,866.36
4. Step 4: Simplify right side
   92,426.42x = 3,586,321,667.92
5. Step 5: Solve for x
   x = 3,586,321,667.92/92,426.42
6. Step 6: Final answer
   x = 38,801.91