Finding the Fourth Proportional to 105,093.08, 145,186.41 and 68,880.46

Step by Step Solution

1. Step 1: Write the proportion equation
   105,093.08 : 145,186.41 = 68,880.46 : x
2. Step 2: Convert to fraction form
   105,093.08/145,186.41 = 68,880.46/x
3. Step 3: Cross multiply
   105,093.08x = 145,186.41 × 68,880.46
4. Step 4: Simplify right side
   105,093.08x = 10,000,505,636.21
5. Step 5: Solve for x
   x = 10,000,505,636.21/105,093.08
6. Step 6: Final answer
   x = 95,158.56