Finding the Fourth Proportional to 8,780.67, 13,152.69 and 4,104.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.67 : 13,152.69 = 4,104.72 : x
2. Step 2: Convert to fraction form
   8,780.67/13,152.69 = 4,104.72/x
3. Step 3: Cross multiply
   8,780.67x = 13,152.69 × 4,104.72
4. Step 4: Simplify right side
   8,780.67x = 53,988,109.70
5. Step 5: Solve for x
   x = 53,988,109.70/8,780.67
6. Step 6: Final answer
   x = 6,148.52