Finding the Fourth Proportional to 123,898.54, 186,680.70 and 112,065.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,898.54 : 186,680.70 = 112,065.50 : x
2. Step 2: Convert to fraction form
   123,898.54/186,680.70 = 112,065.50/x
3. Step 3: Cross multiply
   123,898.54x = 186,680.70 × 112,065.50
4. Step 4: Simplify right side
   123,898.54x = 20,920,465,052.45
5. Step 5: Solve for x
   x = 20,920,465,052.45/123,898.54
6. Step 6: Final answer
   x = 168,851.59