Finding the Fourth Proportional to 215,488.20, 297,373.69 and 124,896.72

Step by Step Solution

1. Step 1: Write the proportion equation
   215,488.20 : 297,373.69 = 124,896.72 : x
2. Step 2: Convert to fraction form
   215,488.20/297,373.69 = 124,896.72/x
3. Step 3: Cross multiply
   215,488.20x = 297,373.69 × 124,896.72
4. Step 4: Simplify right side
   215,488.20x = 37,140,998,495.30
5. Step 5: Solve for x
   x = 37,140,998,495.30/215,488.20
6. Step 6: Final answer
   x = 172,357.46