Finding the Fourth Proportional to 89,990.49, 134,901.59 and 40,043.46

Step by Step Solution

1. Step 1: Write the proportion equation
   89,990.49 : 134,901.59 = 40,043.46 : x
2. Step 2: Convert to fraction form
   89,990.49/134,901.59 = 40,043.46/x
3. Step 3: Cross multiply
   89,990.49x = 134,901.59 × 40,043.46
4. Step 4: Simplify right side
   89,990.49x = 5,401,926,523.21
5. Step 5: Solve for x
   x = 5,401,926,523.21/89,990.49
6. Step 6: Final answer
   x = 60,027.75