Finding the Fourth Proportional to 148,689.49, 205,191.71 and 80,706.49

Step by Step Solution

1. Step 1: Write the proportion equation
   148,689.49 : 205,191.71 = 80,706.49 : x
2. Step 2: Convert to fraction form
   148,689.49/205,191.71 = 80,706.49/x
3. Step 3: Cross multiply
   148,689.49x = 205,191.71 × 80,706.49
4. Step 4: Simplify right side
   148,689.49x = 16,560,301,774.69
5. Step 5: Solve for x
   x = 16,560,301,774.69/148,689.49
6. Step 6: Final answer
   x = 111,375.07