Finding the Fourth Proportional to 17,886.78, 24,682.59 and 9,928.62

Step by Step Solution

1. Step 1: Write the proportion equation
   17,886.78 : 24,682.59 = 9,928.62 : x
2. Step 2: Convert to fraction form
   17,886.78/24,682.59 = 9,928.62/x
3. Step 3: Cross multiply
   17,886.78x = 24,682.59 × 9,928.62
4. Step 4: Simplify right side
   17,886.78x = 245,064,056.73
5. Step 5: Solve for x
   x = 245,064,056.73/17,886.78
6. Step 6: Final answer
   x = 13,700.85