Finding the Fourth Proportional to 45,496.32, 68,318.56 and 28,076.88

Step by Step Solution

1. Step 1: Write the proportion equation
   45,496.32 : 68,318.56 = 28,076.88 : x
2. Step 2: Convert to fraction form
   45,496.32/68,318.56 = 28,076.88/x
3. Step 3: Cross multiply
   45,496.32x = 68,318.56 × 28,076.88
4. Step 4: Simplify right side
   45,496.32x = 1,918,172,010.89
5. Step 5: Solve for x
   x = 1,918,172,010.89/45,496.32
6. Step 6: Final answer
   x = 42,161.04