Finding the Fourth Proportional to 9,234.72, 12,748.50 and 5,699.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,234.72 : 12,748.50 = 5,699.88 : x
2. Step 2: Convert to fraction form
   9,234.72/12,748.50 = 5,699.88/x
3. Step 3: Cross multiply
   9,234.72x = 12,748.50 × 5,699.88
4. Step 4: Simplify right side
   9,234.72x = 72,664,920.18
5. Step 5: Solve for x
   x = 72,664,920.18/9,234.72
6. Step 6: Final answer
   x = 7,868.67