Finding the Fourth Proportional to 356,066.89, 534,086.42 and 89,824.09

Step by Step Solution

1. Step 1: Write the proportion equation
   356,066.89 : 534,086.42 = 89,824.09 : x
2. Step 2: Convert to fraction form
   356,066.89/534,086.42 = 89,824.09/x
3. Step 3: Cross multiply
   356,066.89x = 534,086.42 × 89,824.09
4. Step 4: Simplify right side
   356,066.89x = 47,973,826,208.74
5. Step 5: Solve for x
   x = 47,973,826,208.74/356,066.89
6. Step 6: Final answer
   x = 134,732.62