Finding the Fourth Proportional to 17,678.79, 24,393.72 and 10,505.89

Step by Step Solution

1. Step 1: Write the proportion equation
   17,678.79 : 24,393.72 = 10,505.89 : x
2. Step 2: Convert to fraction form
   17,678.79/24,393.72 = 10,505.89/x
3. Step 3: Cross multiply
   17,678.79x = 24,393.72 × 10,505.89
4. Step 4: Simplify right side
   17,678.79x = 256,277,739.01
5. Step 5: Solve for x
   x = 256,277,739.01/17,678.79
6. Step 6: Final answer
   x = 14,496.34