Finding the Fourth Proportional to 17,434.20, 24,055.21 and 9,878.79

Step by Step Solution

1. Step 1: Write the proportion equation
   17,434.20 : 24,055.21 = 9,878.79 : x
2. Step 2: Convert to fraction form
   17,434.20/24,055.21 = 9,878.79/x
3. Step 3: Cross multiply
   17,434.20x = 24,055.21 × 9,878.79
4. Step 4: Simplify right side
   17,434.20x = 237,636,470.55
5. Step 5: Solve for x
   x = 237,636,470.55/17,434.20
6. Step 6: Final answer
   x = 13,630.47