Finding the Fourth Proportional to 17,377.34, 23,980.86 and 9,419.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,377.34 : 23,980.86 = 9,419.69 : x
2. Step 2: Convert to fraction form
   17,377.34/23,980.86 = 9,419.69/x
3. Step 3: Cross multiply
   17,377.34x = 23,980.86 × 9,419.69
4. Step 4: Simplify right side
   17,377.34x = 225,892,327.09
5. Step 5: Solve for x
   x = 225,892,327.09/17,377.34
6. Step 6: Final answer
   x = 12,999.25