Finding the Fourth Proportional to 12,748.42, 17,549.15 and 11,059.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,748.42 : 17,549.15 = 11,059.89 : x
2. Step 2: Convert to fraction form
   12,748.42/17,549.15 = 11,059.89/x
3. Step 3: Cross multiply
   12,748.42x = 17,549.15 × 11,059.89
4. Step 4: Simplify right side
   12,748.42x = 194,091,668.59
5. Step 5: Solve for x
   x = 194,091,668.59/12,748.42
6. Step 6: Final answer
   x = 15,224.76