Finding the Fourth Proportional to 126,936.18, 190,532.42 and 55,890.47

Step by Step Solution

1. Step 1: Write the proportion equation
   126,936.18 : 190,532.42 = 55,890.47 : x
2. Step 2: Convert to fraction form
   126,936.18/190,532.42 = 55,890.47/x
3. Step 3: Cross multiply
   126,936.18x = 190,532.42 × 55,890.47
4. Step 4: Simplify right side
   126,936.18x = 10,648,946,504.04
5. Step 5: Solve for x
   x = 10,648,946,504.04/126,936.18
6. Step 6: Final answer
   x = 83,892.13