Finding the Fourth Proportional to 17,387.50, 23,994.68 and 9,429.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,387.50 : 23,994.68 = 9,429.72 : x
2. Step 2: Convert to fraction form
   17,387.50/23,994.68 = 9,429.72/x
3. Step 3: Cross multiply
   17,387.50x = 23,994.68 × 9,429.72
4. Step 4: Simplify right side
   17,387.50x = 226,263,113.89
5. Step 5: Solve for x
   x = 226,263,113.89/17,387.50
6. Step 6: Final answer
   x = 13,012.98