Finding the Fourth Proportional to 127,550.91, 191,104.73 and 89,519.55

Step by Step Solution

1. Step 1: Write the proportion equation
   127,550.91 : 191,104.73 = 89,519.55 : x
2. Step 2: Convert to fraction form
   127,550.91/191,104.73 = 89,519.55/x
3. Step 3: Cross multiply
   127,550.91x = 191,104.73 × 89,519.55
4. Step 4: Simplify right side
   127,550.91x = 17,107,608,984.87
5. Step 5: Solve for x
   x = 17,107,608,984.87/127,550.91
6. Step 6: Final answer
   x = 134,123.77