Finding the Fourth Proportional to 89,093.38, 133,704.87 and 71,772.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,093.38 : 133,704.87 = 71,772.42 : x
2. Step 2: Convert to fraction form
   89,093.38/133,704.87 = 71,772.42/x
3. Step 3: Cross multiply
   89,093.38x = 133,704.87 × 71,772.42
4. Step 4: Simplify right side
   89,093.38x = 9,596,322,085.69
5. Step 5: Solve for x
   x = 9,596,322,085.69/89,093.38
6. Step 6: Final answer
   x = 107,710.83