Finding the Fourth Proportional to 72,468.12, 108,680.88 and 28,084.92

Step by Step Solution

1. Step 1: Write the proportion equation
   72,468.12 : 108,680.88 = 28,084.92 : x
2. Step 2: Convert to fraction form
   72,468.12/108,680.88 = 28,084.92/x
3. Step 3: Cross multiply
   72,468.12x = 108,680.88 × 28,084.92
4. Step 4: Simplify right side
   72,468.12x = 3,052,293,820.33
5. Step 5: Solve for x
   x = 3,052,293,820.33/72,468.12
6. Step 6: Final answer
   x = 42,119.13