Finding the Fourth Proportional to 17,375.32, 23,979.15 and 9,821.70

Step by Step Solution

1. Step 1: Write the proportion equation
   17,375.32 : 23,979.15 = 9,821.70 : x
2. Step 2: Convert to fraction form
   17,375.32/23,979.15 = 9,821.70/x
3. Step 3: Cross multiply
   17,375.32x = 23,979.15 × 9,821.70
4. Step 4: Simplify right side
   17,375.32x = 235,516,017.56
5. Step 5: Solve for x
   x = 235,516,017.56/17,375.32
6. Step 6: Final answer
   x = 13,554.63