Finding the Fourth Proportional to 37,982.72, 56,979.55 and 13,029.05

Step by Step Solution

1. Step 1: Write the proportion equation
   37,982.72 : 56,979.55 = 13,029.05 : x
2. Step 2: Convert to fraction form
   37,982.72/56,979.55 = 13,029.05/x
3. Step 3: Cross multiply
   37,982.72x = 56,979.55 × 13,029.05
4. Step 4: Simplify right side
   37,982.72x = 742,389,564.66
5. Step 5: Solve for x
   x = 742,389,564.66/37,982.72
6. Step 6: Final answer
   x = 19,545.45