Finding the Fourth Proportional to 40,103.08, 60,116.79 and 13,789.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40,103.08 : 60,116.79 = 13,789.42 : x
2. Step 2: Convert to fraction form
   40,103.08/60,116.79 = 13,789.42/x
3. Step 3: Cross multiply
   40,103.08x = 60,116.79 × 13,789.42
4. Step 4: Simplify right side
   40,103.08x = 828,975,666.36
5. Step 5: Solve for x
   x = 828,975,666.36/40,103.08
6. Step 6: Final answer
   x = 20,671.12