Finding the Fourth Proportional to 89,046.63, 133,635.33 and 71,725.59

Step by Step Solution

1. Step 1: Write the proportion equation
   89,046.63 : 133,635.33 = 71,725.59 : x
2. Step 2: Convert to fraction form
   89,046.63/133,635.33 = 71,725.59/x
3. Step 3: Cross multiply
   89,046.63x = 133,635.33 × 71,725.59
4. Step 4: Simplify right side
   89,046.63x = 9,585,072,889.09
5. Step 5: Solve for x
   x = 9,585,072,889.09/89,046.63
6. Step 6: Final answer
   x = 107,641.05