Finding the Fourth Proportional to 37,320.52, 55,983.18 and 12,359.56

Step by Step Solution

1. Step 1: Write the proportion equation
   37,320.52 : 55,983.18 = 12,359.56 : x
2. Step 2: Convert to fraction form
   37,320.52/55,983.18 = 12,359.56/x
3. Step 3: Cross multiply
   37,320.52x = 55,983.18 × 12,359.56
4. Step 4: Simplify right side
   37,320.52x = 691,927,472.20
5. Step 5: Solve for x
   x = 691,927,472.20/37,320.52
6. Step 6: Final answer
   x = 18,540.13