Finding the Fourth Proportional to 89,586.72, 134,392.43 and 30,406.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,586.72 : 134,392.43 = 30,406.50 : x
2. Step 2: Convert to fraction form
   89,586.72/134,392.43 = 30,406.50/x
3. Step 3: Cross multiply
   89,586.72x = 134,392.43 × 30,406.50
4. Step 4: Simplify right side
   89,586.72x = 4,086,403,498.81
5. Step 5: Solve for x
   x = 4,086,403,498.81/89,586.72
6. Step 6: Final answer
   x = 45,613.94