Finding the Fourth Proportional to 17,886.32, 24,681.12 and 9,928.88

Step by Step Solution

1. Step 1: Write the proportion equation
   17,886.32 : 24,681.12 = 9,928.88 : x
2. Step 2: Convert to fraction form
   17,886.32/24,681.12 = 9,928.88/x
3. Step 3: Cross multiply
   17,886.32x = 24,681.12 × 9,928.88
4. Step 4: Simplify right side
   17,886.32x = 245,055,878.75
5. Step 5: Solve for x
   x = 245,055,878.75/17,886.32
6. Step 6: Final answer
   x = 13,700.74