Finding the Fourth Proportional to 5,288.81, 7,886.54 and 5,241.35

Step by Step Solution

1. Step 1: Write the proportion equation
   5,288.81 : 7,886.54 = 5,241.35 : x
2. Step 2: Convert to fraction form
   5,288.81/7,886.54 = 5,241.35/x
3. Step 3: Cross multiply
   5,288.81x = 7,886.54 × 5,241.35
4. Step 4: Simplify right side
   5,288.81x = 41,336,149.25
5. Step 5: Solve for x
   x = 41,336,149.25/5,288.81
6. Step 6: Final answer
   x = 7,815.78