Finding the Fourth Proportional to 89,209.59, 133,814.62 and 30,086.79

Step by Step Solution

1. Step 1: Write the proportion equation
   89,209.59 : 133,814.62 = 30,086.79 : x
2. Step 2: Convert to fraction form
   89,209.59/133,814.62 = 30,086.79/x
3. Step 3: Cross multiply
   89,209.59x = 133,814.62 × 30,086.79
4. Step 4: Simplify right side
   89,209.59x = 4,026,052,370.87
5. Step 5: Solve for x
   x = 4,026,052,370.87/89,209.59
6. Step 6: Final answer
   x = 45,130.26