Finding the Fourth Proportional to 126,980.06, 190,501.81 and 89,613.07

Step by Step Solution

1. Step 1: Write the proportion equation
   126,980.06 : 190,501.81 = 89,613.07 : x
2. Step 2: Convert to fraction form
   126,980.06/190,501.81 = 89,613.07/x
3. Step 3: Cross multiply
   126,980.06x = 190,501.81 × 89,613.07
4. Step 4: Simplify right side
   126,980.06x = 17,071,451,334.37
5. Step 5: Solve for x
   x = 17,071,451,334.37/126,980.06
6. Step 6: Final answer
   x = 134,441.99