Finding the Fourth Proportional to 11,764.32, 17,635.20 and 5,915.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,764.32 : 17,635.20 = 5,915.28 : x
2. Step 2: Convert to fraction form
   11,764.32/17,635.20 = 5,915.28/x
3. Step 3: Cross multiply
   11,764.32x = 17,635.20 × 5,915.28
4. Step 4: Simplify right side
   11,764.32x = 104,317,145.86
5. Step 5: Solve for x
   x = 104,317,145.86/11,764.32
6. Step 6: Final answer
   x = 8,867.25