Finding the Fourth Proportional to 9,834.89, 14,807.81 and 8,672.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,834.89 : 14,807.81 = 8,672.37 : x
2. Step 2: Convert to fraction form
   9,834.89/14,807.81 = 8,672.37/x
3. Step 3: Cross multiply
   9,834.89x = 14,807.81 × 8,672.37
4. Step 4: Simplify right side
   9,834.89x = 128,418,773.36
5. Step 5: Solve for x
   x = 128,418,773.36/9,834.89
6. Step 6: Final answer
   x = 13,057.46