Finding the Fourth Proportional to 9,871.86, 14,808.57 and 3,298.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,871.86 : 14,808.57 = 3,298.07 : x
2. Step 2: Convert to fraction form
   9,871.86/14,808.57 = 3,298.07/x
3. Step 3: Cross multiply
   9,871.86x = 14,808.57 × 3,298.07
4. Step 4: Simplify right side
   9,871.86x = 48,839,700.46
5. Step 5: Solve for x
   x = 48,839,700.46/9,871.86
6. Step 6: Final answer
   x = 4,947.37