Finding the Fourth Proportional to 72,507.46, 108,800.82 and 28,135.96

Step by Step Solution

1. Step 1: Write the proportion equation
   72,507.46 : 108,800.82 = 28,135.96 : x
2. Step 2: Convert to fraction form
   72,507.46/108,800.82 = 28,135.96/x
3. Step 3: Cross multiply
   72,507.46x = 108,800.82 × 28,135.96
4. Step 4: Simplify right side
   72,507.46x = 3,061,215,519.49
5. Step 5: Solve for x
   x = 3,061,215,519.49/72,507.46
6. Step 6: Final answer
   x = 42,219.32