Finding the Fourth Proportional to 19,328.42, 29,003.78 and 10,443.77

Step by Step Solution

1. Step 1: Write the proportion equation
   19,328.42 : 29,003.78 = 10,443.77 : x
2. Step 2: Convert to fraction form
   19,328.42/29,003.78 = 10,443.77/x
3. Step 3: Cross multiply
   19,328.42x = 29,003.78 × 10,443.77
4. Step 4: Simplify right side
   19,328.42x = 302,908,960.45
5. Step 5: Solve for x
   x = 302,908,960.45/19,328.42
6. Step 6: Final answer
   x = 15,671.69