Finding the Fourth Proportional to 82,196.84, 123,196.12 and 40,013.70

Step by Step Solution

1. Step 1: Write the proportion equation
   82,196.84 : 123,196.12 = 40,013.70 : x
2. Step 2: Convert to fraction form
   82,196.84/123,196.12 = 40,013.70/x
3. Step 3: Cross multiply
   82,196.84x = 123,196.12 × 40,013.70
4. Step 4: Simplify right side
   82,196.84x = 4,929,532,586.84
5. Step 5: Solve for x
   x = 4,929,532,586.84/82,196.84
6. Step 6: Final answer
   x = 59,972.29