Finding the Fourth Proportional to 8,998.32, 13,497.72 and 3,155.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,998.32 : 13,497.72 = 3,155.28 : x
2. Step 2: Convert to fraction form
   8,998.32/13,497.72 = 3,155.28/x
3. Step 3: Cross multiply
   8,998.32x = 13,497.72 × 3,155.28
4. Step 4: Simplify right side
   8,998.32x = 42,589,085.96
5. Step 5: Solve for x
   x = 42,589,085.96/8,998.32
6. Step 6: Final answer
   x = 4,733.00