Finding the Fourth Proportional to 108,051.46, 161,994.57 and 89,272.42

Step by Step Solution

1. Step 1: Write the proportion equation
   108,051.46 : 161,994.57 = 89,272.42 : x
2. Step 2: Convert to fraction form
   108,051.46/161,994.57 = 89,272.42/x
3. Step 3: Cross multiply
   108,051.46x = 161,994.57 × 89,272.42
4. Step 4: Simplify right side
   108,051.46x = 14,461,647,290.76
5. Step 5: Solve for x
   x = 14,461,647,290.76/108,051.46
6. Step 6: Final answer
   x = 133,840.37