Finding the Fourth Proportional to 82,210.14, 123,270.80 and 28,888.38

Step by Step Solution

1. Step 1: Write the proportion equation
   82,210.14 : 123,270.80 = 28,888.38 : x
2. Step 2: Convert to fraction form
   82,210.14/123,270.80 = 28,888.38/x
3. Step 3: Cross multiply
   82,210.14x = 123,270.80 × 28,888.38
4. Step 4: Simplify right side
   82,210.14x = 3,561,093,568.86
5. Step 5: Solve for x
   x = 3,561,093,568.86/82,210.14
6. Step 6: Final answer
   x = 43,316.96