Finding the Fourth Proportional to 81,548.82, 122,293.89 and 28,226.32

Step by Step Solution

1. Step 1: Write the proportion equation
   81,548.82 : 122,293.89 = 28,226.32 : x
2. Step 2: Convert to fraction form
   81,548.82/122,293.89 = 28,226.32/x
3. Step 3: Cross multiply
   81,548.82x = 122,293.89 × 28,226.32
4. Step 4: Simplify right side
   81,548.82x = 3,451,905,861.72
5. Step 5: Solve for x
   x = 3,451,905,861.72/81,548.82
6. Step 6: Final answer
   x = 42,329.32