Finding the Fourth Proportional to 126,429.89, 189,672.55 and 47,544.09

Step by Step Solution

1. Step 1: Write the proportion equation
   126,429.89 : 189,672.55 = 47,544.09 : x
2. Step 2: Convert to fraction form
   126,429.89/189,672.55 = 47,544.09/x
3. Step 3: Cross multiply
   126,429.89x = 189,672.55 × 47,544.09
4. Step 4: Simplify right side
   126,429.89x = 9,017,808,787.73
5. Step 5: Solve for x
   x = 9,017,808,787.73/126,429.89
6. Step 6: Final answer
   x = 71,326.56