Finding the Fourth Proportional to 89,976.69, 134,770.50 and 45,497.97

Step by Step Solution

1. Step 1: Write the proportion equation
   89,976.69 : 134,770.50 = 45,497.97 : x
2. Step 2: Convert to fraction form
   89,976.69/134,770.50 = 45,497.97/x
3. Step 3: Cross multiply
   89,976.69x = 134,770.50 × 45,497.97
4. Step 4: Simplify right side
   89,976.69x = 6,131,784,165.89
5. Step 5: Solve for x
   x = 6,131,784,165.89/89,976.69
6. Step 6: Final answer
   x = 68,148.59