Finding the Fourth Proportional to 11,475.32, 17,215.56 and 4,079.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,475.32 : 17,215.56 = 4,079.75 : x
2. Step 2: Convert to fraction form
   11,475.32/17,215.56 = 4,079.75/x
3. Step 3: Cross multiply
   11,475.32x = 17,215.56 × 4,079.75
4. Step 4: Simplify right side
   11,475.32x = 70,235,094.83
5. Step 5: Solve for x
   x = 70,235,094.83/11,475.32
6. Step 6: Final answer
   x = 6,120.54