Finding the Fourth Proportional to 8,751.51, 13,123.35 and 3,200.85

Step by Step Solution

1. Step 1: Write the proportion equation
   8,751.51 : 13,123.35 = 3,200.85 : x
2. Step 2: Convert to fraction form
   8,751.51/13,123.35 = 3,200.85/x
3. Step 3: Cross multiply
   8,751.51x = 13,123.35 × 3,200.85
4. Step 4: Simplify right side
   8,751.51x = 42,005,874.85
5. Step 5: Solve for x
   x = 42,005,874.85/8,751.51
6. Step 6: Final answer
   x = 4,799.84