Finding the Fourth Proportional to 193,581.20, 290,234.52 and 75,152.72

Step by Step Solution

1. Step 1: Write the proportion equation
   193,581.20 : 290,234.52 = 75,152.72 : x
2. Step 2: Convert to fraction form
   193,581.20/290,234.52 = 75,152.72/x
3. Step 3: Cross multiply
   193,581.20x = 290,234.52 × 75,152.72
4. Step 4: Simplify right side
   193,581.20x = 21,811,913,615.89
5. Step 5: Solve for x
   x = 21,811,913,615.89/193,581.20
6. Step 6: Final answer
   x = 112,675.78