Finding the Fourth Proportional to 37,445.41, 56,128.15 and 18,688.51

Step by Step Solution

1. Step 1: Write the proportion equation
   37,445.41 : 56,128.15 = 18,688.51 : x
2. Step 2: Convert to fraction form
   37,445.41/56,128.15 = 18,688.51/x
3. Step 3: Cross multiply
   37,445.41x = 56,128.15 × 18,688.51
4. Step 4: Simplify right side
   37,445.41x = 1,048,951,492.56
5. Step 5: Solve for x
   x = 1,048,951,492.56/37,445.41
6. Step 6: Final answer
   x = 28,012.82