Finding the Fourth Proportional to 9,554.64, 14,326.56 and 2,978.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,554.64 : 14,326.56 = 2,978.88 : x
2. Step 2: Convert to fraction form
   9,554.64/14,326.56 = 2,978.88/x
3. Step 3: Cross multiply
   9,554.64x = 14,326.56 × 2,978.88
4. Step 4: Simplify right side
   9,554.64x = 42,677,103.05
5. Step 5: Solve for x
   x = 42,677,103.05/9,554.64
6. Step 6: Final answer
   x = 4,466.64