Finding the Fourth Proportional to 10,989.32, 15,165.27 and 5,953.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,989.32 : 15,165.27 = 5,953.59 : x
2. Step 2: Convert to fraction form
   10,989.32/15,165.27 = 5,953.59/x
3. Step 3: Cross multiply
   10,989.32x = 15,165.27 × 5,953.59
4. Step 4: Simplify right side
   10,989.32x = 90,287,799.82
5. Step 5: Solve for x
   x = 90,287,799.82/10,989.32
6. Step 6: Final answer
   x = 8,215.96