Finding the Fourth Proportional to 9,906.81, 14,855.35 and 4,903.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,906.81 : 14,855.35 = 4,903.40 : x
2. Step 2: Convert to fraction form
   9,906.81/14,855.35 = 4,903.40/x
3. Step 3: Cross multiply
   9,906.81x = 14,855.35 × 4,903.40
4. Step 4: Simplify right side
   9,906.81x = 72,841,694.59
5. Step 5: Solve for x
   x = 72,841,694.59/9,906.81
6. Step 6: Final answer
   x = 7,352.69