Finding the Fourth Proportional to 108,085.20, 149,160.06 and 67,800.66

Step by Step Solution

1. Step 1: Write the proportion equation
   108,085.20 : 149,160.06 = 67,800.66 : x
2. Step 2: Convert to fraction form
   108,085.20/149,160.06 = 67,800.66/x
3. Step 3: Cross multiply
   108,085.20x = 149,160.06 × 67,800.66
4. Step 4: Simplify right side
   108,085.20x = 10,113,150,513.64
5. Step 5: Solve for x
   x = 10,113,150,513.64/108,085.20
6. Step 6: Final answer
   x = 93,566.47