Finding the Fourth Proportional to 140,155.72, 193,415.58 and 76,495

Step by Step Solution

1. Step 1: Write the proportion equation
   140,155.72 : 193,415.58 = 76,495 : x
2. Step 2: Convert to fraction form
   140,155.72/193,415.58 = 76,495/x
3. Step 3: Cross multiply
   140,155.72x = 193,415.58 × 76,495
4. Step 4: Simplify right side
   140,155.72x = 14,795,324,792.10
5. Step 5: Solve for x
   x = 14,795,324,792.10/140,155.72
6. Step 6: Final answer
   x = 105,563.47