Finding the Fourth Proportional to 5,345.35, 8,015.50 and 3,124.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,345.35 : 8,015.50 = 3,124.82 : x
2. Step 2: Convert to fraction form
   5,345.35/8,015.50 = 3,124.82/x
3. Step 3: Cross multiply
   5,345.35x = 8,015.50 × 3,124.82
4. Step 4: Simplify right side
   5,345.35x = 25,046,994.71
5. Step 5: Solve for x
   x = 25,046,994.71/5,345.35
6. Step 6: Final answer
   x = 4,685.75