Finding the Fourth Proportional to 37,555.17, 56,333.49 and 12,590.56

Step by Step Solution

1. Step 1: Write the proportion equation
   37,555.17 : 56,333.49 = 12,590.56 : x
2. Step 2: Convert to fraction form
   37,555.17/56,333.49 = 12,590.56/x
3. Step 3: Cross multiply
   37,555.17x = 56,333.49 × 12,590.56
4. Step 4: Simplify right side
   37,555.17x = 709,270,185.85
5. Step 5: Solve for x
   x = 709,270,185.85/37,555.17
6. Step 6: Final answer
   x = 18,886.09