Finding the Fourth Proportional to 100,764.72, 151,168.92 and 30,642.18

Step by Step Solution

1. Step 1: Write the proportion equation
   100,764.72 : 151,168.92 = 30,642.18 : x
2. Step 2: Convert to fraction form
   100,764.72/151,168.92 = 30,642.18/x
3. Step 3: Cross multiply
   100,764.72x = 151,168.92 × 30,642.18
4. Step 4: Simplify right side
   100,764.72x = 4,632,145,257.05
5. Step 5: Solve for x
   x = 4,632,145,257.05/100,764.72
6. Step 6: Final answer
   x = 45,969.91