Finding the Fourth Proportional to 37,680.52, 56,481.34 and 12,711.96

Step by Step Solution

1. Step 1: Write the proportion equation
   37,680.52 : 56,481.34 = 12,711.96 : x
2. Step 2: Convert to fraction form
   37,680.52/56,481.34 = 12,711.96/x
3. Step 3: Cross multiply
   37,680.52x = 56,481.34 × 12,711.96
4. Step 4: Simplify right side
   37,680.52x = 717,988,534.83
5. Step 5: Solve for x
   x = 717,988,534.83/37,680.52
6. Step 6: Final answer
   x = 19,054.63