Finding the Fourth Proportional to 108,628.34, 149,818.32 and 76,469.51

Step by Step Solution

1. Step 1: Write the proportion equation
   108,628.34 : 149,818.32 = 76,469.51 : x
2. Step 2: Convert to fraction form
   108,628.34/149,818.32 = 76,469.51/x
3. Step 3: Cross multiply
   108,628.34x = 149,818.32 × 76,469.51
4. Step 4: Simplify right side
   108,628.34x = 11,456,532,770.33
5. Step 5: Solve for x
   x = 11,456,532,770.33/108,628.34
6. Step 6: Final answer
   x = 105,465.42