Finding the Fourth Proportional to 37,894.69, 56,847.22 and 12,928.04

Step by Step Solution

1. Step 1: Write the proportion equation
   37,894.69 : 56,847.22 = 12,928.04 : x
2. Step 2: Convert to fraction form
   37,894.69/56,847.22 = 12,928.04/x
3. Step 3: Cross multiply
   37,894.69x = 56,847.22 × 12,928.04
4. Step 4: Simplify right side
   37,894.69x = 734,922,849.81
5. Step 5: Solve for x
   x = 734,922,849.81/37,894.69
6. Step 6: Final answer
   x = 19,393.82