Finding the Fourth Proportional to 126,411.56, 189,644.71 and 37,672.21

Step by Step Solution

1. Step 1: Write the proportion equation
   126,411.56 : 189,644.71 = 37,672.21 : x
2. Step 2: Convert to fraction form
   126,411.56/189,644.71 = 37,672.21/x
3. Step 3: Cross multiply
   126,411.56x = 189,644.71 × 37,672.21
4. Step 4: Simplify right side
   126,411.56x = 7,144,335,340.51
5. Step 5: Solve for x
   x = 7,144,335,340.51/126,411.56
6. Step 6: Final answer
   x = 56,516.47