Finding the Fourth Proportional to 82,590.42, 123,878.34 and 30,000.36

Step by Step Solution

1. Step 1: Write the proportion equation
   82,590.42 : 123,878.34 = 30,000.36 : x
2. Step 2: Convert to fraction form
   82,590.42/123,878.34 = 30,000.36/x
3. Step 3: Cross multiply
   82,590.42x = 123,878.34 × 30,000.36
4. Step 4: Simplify right side
   82,590.42x = 3,716,394,026.81
5. Step 5: Solve for x
   x = 3,716,394,026.81/82,590.42
6. Step 6: Final answer
   x = 44,997.89