Finding the Fourth Proportional to 17,716.32, 24,436.98 and 12,678.93

Step by Step Solution

1. Step 1: Write the proportion equation
   17,716.32 : 24,436.98 = 12,678.93 : x
2. Step 2: Convert to fraction form
   17,716.32/24,436.98 = 12,678.93/x
3. Step 3: Cross multiply
   17,716.32x = 24,436.98 × 12,678.93
4. Step 4: Simplify right side
   17,716.32x = 309,834,758.83
5. Step 5: Solve for x
   x = 309,834,758.83/17,716.32
6. Step 6: Final answer
   x = 17,488.66