Finding the Fourth Proportional to 9,928.98, 14,909.94 and 8,298.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,928.98 : 14,909.94 = 8,298.18 : x
2. Step 2: Convert to fraction form
   9,928.98/14,909.94 = 8,298.18/x
3. Step 3: Cross multiply
   9,928.98x = 14,909.94 × 8,298.18
4. Step 4: Simplify right side
   9,928.98x = 123,725,365.91
5. Step 5: Solve for x
   x = 123,725,365.91/9,928.98
6. Step 6: Final answer
   x = 12,461.03