Finding the Fourth Proportional to 11,638.56, 17,460.96 and 4,709.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,638.56 : 17,460.96 = 4,709.28 : x
2. Step 2: Convert to fraction form
   11,638.56/17,460.96 = 4,709.28/x
3. Step 3: Cross multiply
   11,638.56x = 17,460.96 × 4,709.28
4. Step 4: Simplify right side
   11,638.56x = 82,228,549.71
5. Step 5: Solve for x
   x = 82,228,549.71/11,638.56
6. Step 6: Final answer
   x = 7,065.18