Finding the Fourth Proportional to 215,890.56, 323,874.72 and 103,475.52

Step by Step Solution

1. Step 1: Write the proportion equation
   215,890.56 : 323,874.72 = 103,475.52 : x
2. Step 2: Convert to fraction form
   215,890.56/323,874.72 = 103,475.52/x
3. Step 3: Cross multiply
   215,890.56x = 323,874.72 × 103,475.52
4. Step 4: Simplify right side
   215,890.56x = 33,513,105,066.85
5. Step 5: Solve for x
   x = 33,513,105,066.85/215,890.56
6. Step 6: Final answer
   x = 155,231.92