Finding the Fourth Proportional to 37,390.42, 56,064.61 and 12,417.10

Step by Step Solution

1. Step 1: Write the proportion equation
   37,390.42 : 56,064.61 = 12,417.10 : x
2. Step 2: Convert to fraction form
   37,390.42/56,064.61 = 12,417.10/x
3. Step 3: Cross multiply
   37,390.42x = 56,064.61 × 12,417.10
4. Step 4: Simplify right side
   37,390.42x = 696,159,868.83
5. Step 5: Solve for x
   x = 696,159,868.83/37,390.42
6. Step 6: Final answer
   x = 18,618.67