Finding the Fourth Proportional to 37,631.92, 56,412.56 and 12,654.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,631.92 : 56,412.56 = 12,654.50 : x
2. Step 2: Convert to fraction form
   37,631.92/56,412.56 = 12,654.50/x
3. Step 3: Cross multiply
   37,631.92x = 56,412.56 × 12,654.50
4. Step 4: Simplify right side
   37,631.92x = 713,872,740.52
5. Step 5: Solve for x
   x = 713,872,740.52/37,631.92
6. Step 6: Final answer
   x = 18,969.87