Finding the Fourth Proportional to 93,131.37, 128,466.81 and 67,608

Step by Step Solution

1. Step 1: Write the proportion equation
   93,131.37 : 128,466.81 = 67,608 : x
2. Step 2: Convert to fraction form
   93,131.37/128,466.81 = 67,608/x
3. Step 3: Cross multiply
   93,131.37x = 128,466.81 × 67,608
4. Step 4: Simplify right side
   93,131.37x = 8,685,384,090.48
5. Step 5: Solve for x
   x = 8,685,384,090.48/93,131.37
6. Step 6: Final answer
   x = 93,259.49