Finding the Fourth Proportional to 389,120.72, 583,576.56 and 149,182.52

Step by Step Solution

1. Step 1: Write the proportion equation
   389,120.72 : 583,576.56 = 149,182.52 : x
2. Step 2: Convert to fraction form
   389,120.72/583,576.56 = 149,182.52/x
3. Step 3: Cross multiply
   389,120.72x = 583,576.56 × 149,182.52
4. Step 4: Simplify right side
   389,120.72x = 87,059,421,833.73
5. Step 5: Solve for x
   x = 87,059,421,833.73/389,120.72
6. Step 6: Final answer
   x = 223,733.71