Finding the Fourth Proportional to 127,103.18, 190,687.16 and 89,736.05

Step by Step Solution

1. Step 1: Write the proportion equation
   127,103.18 : 190,687.16 = 89,736.05 : x
2. Step 2: Convert to fraction form
   127,103.18/190,687.16 = 89,736.05/x
3. Step 3: Cross multiply
   127,103.18x = 190,687.16 × 89,736.05
4. Step 4: Simplify right side
   127,103.18x = 17,111,513,225.18
5. Step 5: Solve for x
   x = 17,111,513,225.18/127,103.18
6. Step 6: Final answer
   x = 134,626.95