Finding the Fourth Proportional to 127,630.50, 191,111.31 and 89,986.83

Step by Step Solution

1. Step 1: Write the proportion equation
   127,630.50 : 191,111.31 = 89,986.83 : x
2. Step 2: Convert to fraction form
   127,630.50/191,111.31 = 89,986.83/x
3. Step 3: Cross multiply
   127,630.50x = 191,111.31 × 89,986.83
4. Step 4: Simplify right side
   127,630.50x = 17,197,500,964.05
5. Step 5: Solve for x
   x = 17,197,500,964.05/127,630.50
6. Step 6: Final answer
   x = 134,744.45