Finding the Fourth Proportional to 90,443.09, 135,663.02 and 37,123.49

Step by Step Solution

1. Step 1: Write the proportion equation
   90,443.09 : 135,663.02 = 37,123.49 : x
2. Step 2: Convert to fraction form
   90,443.09/135,663.02 = 37,123.49/x
3. Step 3: Cross multiply
   90,443.09x = 135,663.02 × 37,123.49
4. Step 4: Simplify right side
   90,443.09x = 5,036,285,059.09
5. Step 5: Solve for x
   x = 5,036,285,059.09/90,443.09
6. Step 6: Final answer
   x = 55,684.57