Finding the Fourth Proportional to 11,758.06, 17,623.18 and 5,170.47

Step by Step Solution

1. Step 1: Write the proportion equation
   11,758.06 : 17,623.18 = 5,170.47 : x
2. Step 2: Convert to fraction form
   11,758.06/17,623.18 = 5,170.47/x
3. Step 3: Cross multiply
   11,758.06x = 17,623.18 × 5,170.47
4. Step 4: Simplify right side
   11,758.06x = 91,120,123.49
5. Step 5: Solve for x
   x = 91,120,123.49/11,758.06
6. Step 6: Final answer
   x = 7,749.59