Finding the Fourth Proportional to 17,375.78, 23,978.58 and 9,417.99

Step by Step Solution

1. Step 1: Write the proportion equation
   17,375.78 : 23,978.58 = 9,417.99 : x
2. Step 2: Convert to fraction form
   17,375.78/23,978.58 = 9,417.99/x
3. Step 3: Cross multiply
   17,375.78x = 23,978.58 × 9,417.99
4. Step 4: Simplify right side
   17,375.78x = 225,830,026.65
5. Step 5: Solve for x
   x = 225,830,026.65/17,375.78
6. Step 6: Final answer
   x = 12,996.83