Finding the Fourth Proportional to 37,145.58, 55,679.24 and 12,179.12

Step by Step Solution

1. Step 1: Write the proportion equation
   37,145.58 : 55,679.24 = 12,179.12 : x
2. Step 2: Convert to fraction form
   37,145.58/55,679.24 = 12,179.12/x
3. Step 3: Cross multiply
   37,145.58x = 55,679.24 × 12,179.12
4. Step 4: Simplify right side
   37,145.58x = 678,124,145.47
5. Step 5: Solve for x
   x = 678,124,145.47/37,145.58
6. Step 6: Final answer
   x = 18,255.85