Finding the Fourth Proportional to 37,688.42, 56,533.82 and 18,958.23

Step by Step Solution

1. Step 1: Write the proportion equation
   37,688.42 : 56,533.82 = 18,958.23 : x
2. Step 2: Convert to fraction form
   37,688.42/56,533.82 = 18,958.23/x
3. Step 3: Cross multiply
   37,688.42x = 56,533.82 × 18,958.23
4. Step 4: Simplify right side
   37,688.42x = 1,071,781,067.55
5. Step 5: Solve for x
   x = 1,071,781,067.55/37,688.42
6. Step 6: Final answer
   x = 28,437.94