Finding the Fourth Proportional to 8,323.68, 12,488.59 and 4,374.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,323.68 : 12,488.59 = 4,374.78 : x
2. Step 2: Convert to fraction form
   8,323.68/12,488.59 = 4,374.78/x
3. Step 3: Cross multiply
   8,323.68x = 12,488.59 × 4,374.78
4. Step 4: Simplify right side
   8,323.68x = 54,634,833.76
5. Step 5: Solve for x
   x = 54,634,833.76/8,323.68
6. Step 6: Final answer
   x = 6,563.78