Finding the Fourth Proportional to 9,908.23, 13,658.04 and 7,386.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,908.23 : 13,658.04 = 7,386.50 : x
2. Step 2: Convert to fraction form
   9,908.23/13,658.04 = 7,386.50/x
3. Step 3: Cross multiply
   9,908.23x = 13,658.04 × 7,386.50
4. Step 4: Simplify right side
   9,908.23x = 100,885,112.46
5. Step 5: Solve for x
   x = 100,885,112.46/9,908.23
6. Step 6: Final answer
   x = 10,181.95