Finding the Fourth Proportional to 109,680.12, 164,300.94 and 50,434.60

Step by Step Solution

1. Step 1: Write the proportion equation
   109,680.12 : 164,300.94 = 50,434.60 : x
2. Step 2: Convert to fraction form
   109,680.12/164,300.94 = 50,434.60/x
3. Step 3: Cross multiply
   109,680.12x = 164,300.94 × 50,434.60
4. Step 4: Simplify right side
   109,680.12x = 8,286,452,188.52
5. Step 5: Solve for x
   x = 8,286,452,188.52/109,680.12
6. Step 6: Final answer
   x = 75,551.09