Finding the Fourth Proportional to 17,478.84, 24,120.67 and 9,521.06

Step by Step Solution

1. Step 1: Write the proportion equation
   17,478.84 : 24,120.67 = 9,521.06 : x
2. Step 2: Convert to fraction form
   17,478.84/24,120.67 = 9,521.06/x
3. Step 3: Cross multiply
   17,478.84x = 24,120.67 × 9,521.06
4. Step 4: Simplify right side
   17,478.84x = 229,654,446.48
5. Step 5: Solve for x
   x = 229,654,446.48/17,478.84
6. Step 6: Final answer
   x = 13,139.00