Finding the Fourth Proportional to 9,872.69, 14,807.42 and 3,298.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,872.69 : 14,807.42 = 3,298.86 : x
2. Step 2: Convert to fraction form
   9,872.69/14,807.42 = 3,298.86/x
3. Step 3: Cross multiply
   9,872.69x = 14,807.42 × 3,298.86
4. Step 4: Simplify right side
   9,872.69x = 48,847,619.97
5. Step 5: Solve for x
   x = 48,847,619.97/9,872.69
6. Step 6: Final answer
   x = 4,947.75