Finding the Fourth Proportional to 12,933.45, 19,407.83 and 5,436.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,933.45 : 19,407.83 = 5,436.41 : x
2. Step 2: Convert to fraction form
   12,933.45/19,407.83 = 5,436.41/x
3. Step 3: Cross multiply
   12,933.45x = 19,407.83 × 5,436.41
4. Step 4: Simplify right side
   12,933.45x = 105,508,796.87
5. Step 5: Solve for x
   x = 105,508,796.87/12,933.45
6. Step 6: Final answer
   x = 8,157.82