Finding the Fourth Proportional to 154,947.31, 213,953.33 and 126,271.18

Step by Step Solution

1. Step 1: Write the proportion equation
   154,947.31 : 213,953.33 = 126,271.18 : x
2. Step 2: Convert to fraction form
   154,947.31/213,953.33 = 126,271.18/x
3. Step 3: Cross multiply
   154,947.31x = 213,953.33 × 126,271.18
4. Step 4: Simplify right side
   154,947.31x = 27,016,139,444.03
5. Step 5: Solve for x
   x = 27,016,139,444.03/154,947.31
6. Step 6: Final answer
   x = 174,356.94