Finding the Fourth Proportional to 82,178.84, 123,561.69 and 75,683.45

Step by Step Solution

1. Step 1: Write the proportion equation
   82,178.84 : 123,561.69 = 75,683.45 : x
2. Step 2: Convert to fraction form
   82,178.84/123,561.69 = 75,683.45/x
3. Step 3: Cross multiply
   82,178.84x = 123,561.69 × 75,683.45
4. Step 4: Simplify right side
   82,178.84x = 9,351,574,987.03
5. Step 5: Solve for x
   x = 9,351,574,987.03/82,178.84
6. Step 6: Final answer
   x = 113,795.41