Finding the Fourth Proportional to 37,340.84, 56,020.82 and 12,387.86

Step by Step Solution

1. Step 1: Write the proportion equation
   37,340.84 : 56,020.82 = 12,387.86 : x
2. Step 2: Convert to fraction form
   37,340.84/56,020.82 = 12,387.86/x
3. Step 3: Cross multiply
   37,340.84x = 56,020.82 × 12,387.86
4. Step 4: Simplify right side
   37,340.84x = 693,978,075.25
5. Step 5: Solve for x
   x = 693,978,075.25/37,340.84
6. Step 6: Final answer
   x = 18,584.96