Finding the Fourth Proportional to 89,047.38, 133,636.41 and 71,726.34

Step by Step Solution

1. Step 1: Write the proportion equation
   89,047.38 : 133,636.41 = 71,726.34 : x
2. Step 2: Convert to fraction form
   89,047.38/133,636.41 = 71,726.34/x
3. Step 3: Cross multiply
   89,047.38x = 133,636.41 × 71,726.34
4. Step 4: Simplify right side
   89,047.38x = 9,585,250,580.04
5. Step 5: Solve for x
   x = 9,585,250,580.04/89,047.38
6. Step 6: Final answer
   x = 107,642.14