Finding the Fourth Proportional to 90,769.37, 136,168.64 and 38,193.89

Step by Step Solution

1. Step 1: Write the proportion equation
   90,769.37 : 136,168.64 = 38,193.89 : x
2. Step 2: Convert to fraction form
   90,769.37/136,168.64 = 38,193.89/x
3. Step 3: Cross multiply
   90,769.37x = 136,168.64 × 38,193.89
4. Step 4: Simplify right side
   90,769.37x = 5,200,810,057.61
5. Step 5: Solve for x
   x = 5,200,810,057.61/90,769.37
6. Step 6: Final answer
   x = 57,296.97