Finding the Fourth Proportional to 42,168.06, 63,250.89 and 12,586.14

Step by Step Solution

1. Step 1: Write the proportion equation
   42,168.06 : 63,250.89 = 12,586.14 : x
2. Step 2: Convert to fraction form
   42,168.06/63,250.89 = 12,586.14/x
3. Step 3: Cross multiply
   42,168.06x = 63,250.89 × 12,586.14
4. Step 4: Simplify right side
   42,168.06x = 796,084,556.66
5. Step 5: Solve for x
   x = 796,084,556.66/42,168.06
6. Step 6: Final answer
   x = 18,878.85