Finding the Fourth Proportional to 17,178.32, 23,705.55 and 9,624.45

Step by Step Solution

1. Step 1: Write the proportion equation
   17,178.32 : 23,705.55 = 9,624.45 : x
2. Step 2: Convert to fraction form
   17,178.32/23,705.55 = 9,624.45/x
3. Step 3: Cross multiply
   17,178.32x = 23,705.55 × 9,624.45
4. Step 4: Simplify right side
   17,178.32x = 228,152,880.70
5. Step 5: Solve for x
   x = 228,152,880.70/17,178.32
6. Step 6: Final answer
   x = 13,281.45