Finding the Fourth Proportional to 127,648.54, 190,939.48 and 89,695.15

Step by Step Solution

1. Step 1: Write the proportion equation
   127,648.54 : 190,939.48 = 89,695.15 : x
2. Step 2: Convert to fraction form
   127,648.54/190,939.48 = 89,695.15/x
3. Step 3: Cross multiply
   127,648.54x = 190,939.48 × 89,695.15
4. Step 4: Simplify right side
   127,648.54x = 17,126,345,299.52
5. Step 5: Solve for x
   x = 17,126,345,299.52/127,648.54
6. Step 6: Final answer
   x = 134,167.97