Finding the Fourth Proportional to 142,510.82, 213,766.76 and 115,730.15

Step by Step Solution

1. Step 1: Write the proportion equation
   142,510.82 : 213,766.76 = 115,730.15 : x
2. Step 2: Convert to fraction form
   142,510.82/213,766.76 = 115,730.15/x
3. Step 3: Cross multiply
   142,510.82x = 213,766.76 × 115,730.15
4. Step 4: Simplify right side
   142,510.82x = 24,739,257,552.33
5. Step 5: Solve for x
   x = 24,739,257,552.33/142,510.82
6. Step 6: Final answer
   x = 173,595.65