Finding the Fourth Proportional to 105,090.85, 145,025.37 and 67,365.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,090.85 : 145,025.37 = 67,365.10 : x
2. Step 2: Convert to fraction form
   105,090.85/145,025.37 = 67,365.10/x
3. Step 3: Cross multiply
   105,090.85x = 145,025.37 × 67,365.10
4. Step 4: Simplify right side
   105,090.85x = 9,769,648,552.59
5. Step 5: Solve for x
   x = 9,769,648,552.59/105,090.85
6. Step 6: Final answer
   x = 92,963.84