Finding the Fourth Proportional to 126,386.73, 189,614.72 and 55,296.47

Step by Step Solution

1. Step 1: Write the proportion equation
   126,386.73 : 189,614.72 = 55,296.47 : x
2. Step 2: Convert to fraction form
   126,386.73/189,614.72 = 55,296.47/x
3. Step 3: Cross multiply
   126,386.73x = 189,614.72 × 55,296.47
4. Step 4: Simplify right side
   126,386.73x = 10,485,025,288.32
5. Step 5: Solve for x
   x = 10,485,025,288.32/126,386.73
6. Step 6: Final answer
   x = 82,959.86