Finding the Fourth Proportional to 17,002.78, 23,463.84 and 9,930.58

Step by Step Solution

1. Step 1: Write the proportion equation
   17,002.78 : 23,463.84 = 9,930.58 : x
2. Step 2: Convert to fraction form
   17,002.78/23,463.84 = 9,930.58/x
3. Step 3: Cross multiply
   17,002.78x = 23,463.84 × 9,930.58
4. Step 4: Simplify right side
   17,002.78x = 233,009,540.23
5. Step 5: Solve for x
   x = 233,009,540.23/17,002.78
6. Step 6: Final answer
   x = 13,704.20