Finding the Fourth Proportional to 215,432.83, 323,296.89 and 75,191.45

Step by Step Solution

1. Step 1: Write the proportion equation
   215,432.83 : 323,296.89 = 75,191.45 : x
2. Step 2: Convert to fraction form
   215,432.83/323,296.89 = 75,191.45/x
3. Step 3: Cross multiply
   215,432.83x = 323,296.89 × 75,191.45
4. Step 4: Simplify right side
   215,432.83x = 24,309,162,747.83
5. Step 5: Solve for x
   x = 24,309,162,747.83/215,432.83
6. Step 6: Final answer
   x = 112,838.71