Finding the Fourth Proportional to 108,378.95, 149,705.91 and 83,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,378.95 : 149,705.91 = 83,196.50 : x
2. Step 2: Convert to fraction form
   108,378.95/149,705.91 = 83,196.50/x
3. Step 3: Cross multiply
   108,378.95x = 149,705.91 × 83,196.50
4. Step 4: Simplify right side
   108,378.95x = 12,455,006,992.79
5. Step 5: Solve for x
   x = 12,455,006,992.79/108,378.95
6. Step 6: Final answer
   x = 114,920.91