Finding the Fourth Proportional to 17,303.35, 23,878.62 and 9,345.57

Step by Step Solution

1. Step 1: Write the proportion equation
   17,303.35 : 23,878.62 = 9,345.57 : x
2. Step 2: Convert to fraction form
   17,303.35/23,878.62 = 9,345.57/x
3. Step 3: Cross multiply
   17,303.35x = 23,878.62 × 9,345.57
4. Step 4: Simplify right side
   17,303.35x = 223,159,314.71
5. Step 5: Solve for x
   x = 223,159,314.71/17,303.35
6. Step 6: Final answer
   x = 12,896.88