Finding the Fourth Proportional to 107,707.50, 148,639.77 and 67,408.38

Step by Step Solution

1. Step 1: Write the proportion equation
   107,707.50 : 148,639.77 = 67,408.38 : x
2. Step 2: Convert to fraction form
   107,707.50/148,639.77 = 67,408.38/x
3. Step 3: Cross multiply
   107,707.50x = 148,639.77 × 67,408.38
4. Step 4: Simplify right side
   107,707.50x = 10,019,566,099.27
5. Step 5: Solve for x
   x = 10,019,566,099.27/107,707.50
6. Step 6: Final answer
   x = 93,025.70