Finding the Fourth Proportional to 9,902.15, 13,663.23 and 5,651.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,902.15 : 13,663.23 = 5,651.27 : x
2. Step 2: Convert to fraction form
   9,902.15/13,663.23 = 5,651.27/x
3. Step 3: Cross multiply
   9,902.15x = 13,663.23 × 5,651.27
4. Step 4: Simplify right side
   9,902.15x = 77,214,595.32
5. Step 5: Solve for x
   x = 77,214,595.32/9,902.15
6. Step 6: Final answer
   x = 7,797.76