Finding the Fourth Proportional to 12,300.83, 16,976.18 and 10,056.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,300.83 : 16,976.18 = 10,056.42 : x
2. Step 2: Convert to fraction form
   12,300.83/16,976.18 = 10,056.42/x
3. Step 3: Cross multiply
   12,300.83x = 16,976.18 × 10,056.42
4. Step 4: Simplify right side
   12,300.83x = 170,719,621.22
5. Step 5: Solve for x
   x = 170,719,621.22/12,300.83
6. Step 6: Final answer
   x = 13,878.71