Finding the Fourth Proportional to 82,542.42, 123,812.79 and 26,381.88

Step by Step Solution

1. Step 1: Write the proportion equation
   82,542.42 : 123,812.79 = 26,381.88 : x
2. Step 2: Convert to fraction form
   82,542.42/123,812.79 = 26,381.88/x
3. Step 3: Cross multiply
   82,542.42x = 123,812.79 × 26,381.88
4. Step 4: Simplify right side
   82,542.42x = 3,266,414,168.25
5. Step 5: Solve for x
   x = 3,266,414,168.25/82,542.42
6. Step 6: Final answer
   x = 39,572.55