Finding the Fourth Proportional to 5,364.39, 7,406.79 and 3,875.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,364.39 : 7,406.79 = 3,875.61 : x
2. Step 2: Convert to fraction form
   5,364.39/7,406.79 = 3,875.61/x
3. Step 3: Cross multiply
   5,364.39x = 7,406.79 × 3,875.61
4. Step 4: Simplify right side
   5,364.39x = 28,705,829.39
5. Step 5: Solve for x
   x = 28,705,829.39/5,364.39
6. Step 6: Final answer
   x = 5,351.18