Finding the Fourth Proportional to 82,188.06, 123,287.61 and 28,873.56

Step by Step Solution

1. Step 1: Write the proportion equation
   82,188.06 : 123,287.61 = 28,873.56 : x
2. Step 2: Convert to fraction form
   82,188.06/123,287.61 = 28,873.56/x
3. Step 3: Cross multiply
   82,188.06x = 123,287.61 × 28,873.56
4. Step 4: Simplify right side
   82,188.06x = 3,559,752,204.59
5. Step 5: Solve for x
   x = 3,559,752,204.59/82,188.06
6. Step 6: Final answer
   x = 43,312.28