Finding the Fourth Proportional to 9,312.30, 13,968.72 and 3,764.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,312.30 : 13,968.72 = 3,764.88 : x
2. Step 2: Convert to fraction form
   9,312.30/13,968.72 = 3,764.88/x
3. Step 3: Cross multiply
   9,312.30x = 13,968.72 × 3,764.88
4. Step 4: Simplify right side
   9,312.30x = 52,590,554.55
5. Step 5: Solve for x
   x = 52,590,554.55/9,312.30
6. Step 6: Final answer
   x = 5,647.43