Finding the Fourth Proportional to 126,045.72, 189,112.32 and 55,974.24

Step by Step Solution

1. Step 1: Write the proportion equation
   126,045.72 : 189,112.32 = 55,974.24 : x
2. Step 2: Convert to fraction form
   126,045.72/189,112.32 = 55,974.24/x
3. Step 3: Cross multiply
   126,045.72x = 189,112.32 × 55,974.24
4. Step 4: Simplify right side
   126,045.72x = 10,585,418,386.64
5. Step 5: Solve for x
   x = 10,585,418,386.64/126,045.72
6. Step 6: Final answer
   x = 83,980.78