Finding the Fourth Proportional to 82,540.62, 123,817.82 and 26,388.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,540.62 : 123,817.82 = 26,388.72 : x
2. Step 2: Convert to fraction form
   82,540.62/123,817.82 = 26,388.72/x
3. Step 3: Cross multiply
   82,540.62x = 123,817.82 × 26,388.72
4. Step 4: Simplify right side
   82,540.62x = 3,267,393,651.05
5. Step 5: Solve for x
   x = 3,267,393,651.05/82,540.62
6. Step 6: Final answer
   x = 39,585.28