Finding the Fourth Proportional to 9,877.28, 14,816.31 and 4,327.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,877.28 : 14,816.31 = 4,327.88 : x
2. Step 2: Convert to fraction form
   9,877.28/14,816.31 = 4,327.88/x
3. Step 3: Cross multiply
   9,877.28x = 14,816.31 × 4,327.88
4. Step 4: Simplify right side
   9,877.28x = 64,123,211.72
5. Step 5: Solve for x
   x = 64,123,211.72/9,877.28
6. Step 6: Final answer
   x = 6,491.99