Finding the Fourth Proportional to 19,401.18, 29,101.93 and 10,631.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,401.18 : 29,101.93 = 10,631.31 : x
2. Step 2: Convert to fraction form
   19,401.18/29,101.93 = 10,631.31/x
3. Step 3: Cross multiply
   19,401.18x = 29,101.93 × 10,631.31
4. Step 4: Simplify right side
   19,401.18x = 309,391,639.43
5. Step 5: Solve for x
   x = 309,391,639.43/19,401.18
6. Step 6: Final answer
   x = 15,947.05