Finding the Fourth Proportional to 82,374.84, 123,488.28 and 40,231.08

Step by Step Solution

1. Step 1: Write the proportion equation
   82,374.84 : 123,488.28 = 40,231.08 : x
2. Step 2: Convert to fraction form
   82,374.84/123,488.28 = 40,231.08/x
3. Step 3: Cross multiply
   82,374.84x = 123,488.28 × 40,231.08
4. Step 4: Simplify right side
   82,374.84x = 4,968,066,871.74
5. Step 5: Solve for x
   x = 4,968,066,871.74/82,374.84
6. Step 6: Final answer
   x = 60,310.49