Finding the Fourth Proportional to 5,166.08, 7,129.59 and 2,928.35

Step by Step Solution

1. Step 1: Write the proportion equation
   5,166.08 : 7,129.59 = 2,928.35 : x
2. Step 2: Convert to fraction form
   5,166.08/7,129.59 = 2,928.35/x
3. Step 3: Cross multiply
   5,166.08x = 7,129.59 × 2,928.35
4. Step 4: Simplify right side
   5,166.08x = 20,877,941.72
5. Step 5: Solve for x
   x = 20,877,941.72/5,166.08
6. Step 6: Final answer
   x = 4,041.35