Finding the Fourth Proportional to 37,516.78, 56,257.82 and 13,818.34

Step by Step Solution

1. Step 1: Write the proportion equation
   37,516.78 : 56,257.82 = 13,818.34 : x
2. Step 2: Convert to fraction form
   37,516.78/56,257.82 = 13,818.34/x
3. Step 3: Cross multiply
   37,516.78x = 56,257.82 × 13,818.34
4. Step 4: Simplify right side
   37,516.78x = 777,389,684.42
5. Step 5: Solve for x
   x = 777,389,684.42/37,516.78
6. Step 6: Final answer
   x = 20,721.12